Tag Archives: bounded accuracy

The Obvious Innovation in Fifth-edition Dungeons & Dragons That No Designer Saw Before

Stirrups. Zero. Shipping containers. Luggage with wheels. All these innovations seem obvious in hindsight. But they went undiscovered for millennia, until someone’s bright idea changed the world—or at least put airport porters out of work. Even those hotel shower rods that curve made someone rich.

Fifth edition Dungeons & Dragons includes one obvious-in-hindsight innovation that the game’s past designers failed to spot. Alas, it won’t make anyone rich.

Sverrir by ArboUp until fourth edition, D&D fighters gained extra attacks, but fourth edition avoided them. The designers shunned extra attacks partly to speed play by reducing the number of attack and damage rolls. Sure, spells attacked lots of targets, but at least spells only required one damage roll.

Also fourth edition, like all earlier editions of D&D, aimed to parcel out benefits smoothly as characters leveled up. In theory, this made the difference in power between, a 4th- and 5th-level character about the same as the difference between levels 5 and 6. Characters at similar levels could adventure together without someone routinely dealing twice as much damage. But a second attack on every turn brings a fighter a big jump in power.

The designers of past editions worked to smooth these jumps in power by granting fighters something less than a full extra attack. AD&D gave fighters extra half attacks, and a need to remember half attacks. Third edition traded half attacks and the memory issue for weaker attacks and fiddly attack penalties. These solutions complicated the game with awkward memory demands and calculations.

So playtest versions of fifth edition did not grant fighters and other martial characters an Extra Attack feature. Rather than gaining more attacks, these classes earned features that enabled attacks to deal more damage. But this approach put fighters at a disadvantage against weaker foes easily dropped by a single blow.

When a fighter confronts a goblin horde and only makes one attack per turn, no amount of extra damage matters because one strike can only fell one goblin per turn. To help martial types against weak foes, the playtest included cleaving-attack powers that swept through groups. But such features failed to remedy another trouble: To-hit bonuses in fifth-edition increase at a slower rate and never grow as big as in earlier editions. The designers call this bounded accuracy, because they do not come from marketing. Bounded accuracy means that fighters hit weaker foes less easily than in past editions.

Fighter types should hew through the rabble like grass until, bloodied and battle worn, they stand triumphant. But in the playtest, even the mightiest spent turns muffing their one attack against some mook. With an extra attack, misses matter less because there’s more where that came from.

During the playtest, I wrote, “If D&D Next’s designers can find a good way to allow fighters to gain multiple attacks against weaker opponents, then a key piece of the Next design puzzle falls into place.”

Late in fifth edition’s creation, the designers compared the benefits each class gained as they leveled and noticed that wizards leap in power at 5th and at 11th levels. These jumps come from quirks of a spell list that date to the beginning of the game. At 5th level, wizards gain potent attack spells like Fireball, plus unbalancing buffs like Haste. At 11th level, wizards gain 6th-level spells, which bring save-or-die effects like Disintegrate. At the 9th spell level, Gary Gygax felt comfortable stashing world-altering spells like Wish and Time Stop, because his players never reached 17th level and never gained easy access to them.

Earlier editions of D&D aimed to parcel out benefits smoothly as characters leveled up. Those editions’ designers ignored the leaps in power certain spells brought; the fifth-edition designers embraced the leaps.

This brought the obvious-in-hindsight innovation: Rather than offering fighters half attacks or fiddly attack penalties, fifth edition matches the leaps in power brought by additional attacks to the leaps brought by 3rd, 6th, and 9th-level spells. Fighters gain extra attacks as wizards gain these spells. At the same levels, other classes gain potent powers and spells of their own. For instance, the bard’s Hypnotic Pattern spell got a fifth-edition redesign that moves it to 3rd level and dramatically increases the spell’s power. 

Third and fourth editions arbitrarily aligned the game’s tiers with 10th and 20th levels, because of round numbers. The fifth-edition tiers match to the levels where characters gain the best new powers and spells. These leaps in ability mean 4th- and 5th-level characters cannot adventure together without displaying big power differences, but characters in the same tier can join a party and contribute.

It all seems obvious now. Designer Mike Mearls says that a lot of innovations in game design work that way.

10 Things in Pathfinder Second Edition I Like (and 1 I Don’t)

In 2008, Paizo sent designer Jason Buhlman to the Winter Fantasy convention to sample the upcoming fourth edition of Dungeons & Dragons and report on the game. Paizo founder Lisa Stevens recalls the outcome. “From the moment that 4th Edition had been announced, we had trepidations about many of the changes we were hearing about. Jason’s report confirmed our fears—4th Edition didn’t look like the system we wanted to make products for. Whether a license for 4E was forthcoming or not, we were going to create our own game system based on the 3.5 System Reference Document: The Pathfinder Roleplaying Game.” See The Unintended Consequence That Ruined Fourth Edition D&D’s Chance of Success, But Proved Great for Gamers.

While fourth edition featured a bold new design aimed at saving D&D, Pathfinder became an alternative that refined D&D’s 3.5 edition. For a time, sales of Pathfinder rivaled D&D. But after nearly 10 years, Pathfinder needed an update. So in August 2019, Paizo released a second edition. In a post, lead designer Jason Buhlman named the update’s number one goal: “Create a new edition of Pathfinder that’s much simpler to learn and play—a core system that’s easy to grasp but expandable—while remaining true to the spirit of what makes Pathfinder great: customization, flexibility of story, and rules that reward those who take the time to master them.” Even new, Pathfinder 2 offers more character options than fifth edition.

On reading the new rules and playing a short introduction, I can share 10 things I like in the new game, and 1 thing I don’t’.

1. “Ancestry” instead of “race.” In the The Hobbit, Tolkien calls hobbits a race, and started the custom of referring to elves, dwarves, and other fantastic kin to humans as races. But the term “race” has a common meaning different from the game meaning, which leads to confusion. Referring to even imaginary “races” as intrinsically talented, virtuous, or corrupt feels unsavory at best. “Species” makes a more accurate term, but its scientific flavor makes it jarring in fantasy. Pathfinder replaces “race” with the more agreeable term of “ancestry.” Unless Wizards of the Coast resists an innovation “not invented here,” expect to see “ancestry” in some future sixth edition.

2. Fewer action types. The Pathfinder team saw new players stumble over the original game’s zoo of swift, immediate, move, and standard actions. In a bid to simplify, this second edition consolidates the action types into a system that gives characters 3 actions and 1 reaction per turn. This means even new characters can attempt 3 attacks per turn, although the second strike suffers a -5 penalty and the third a -10 penalty. In practice, only more proficient attackers will land extra attacks. Most spells require 2 actions to cast. When I played a Pathfinder 2 demo, its simpler actions proved very playable, even elegant.

In a related refinement, Pathfinder adds clarity by calling a single attack a strike. This avoids the confusion that the D&D rules sometimes cause by using the same word for an attack and for an attack action that can include multiple attacks.

3. Animal companions level up. To many D&D players, animal companions offer a special appeal, but the game’s support for pets remains shaky. Pathfinder devotes an entire section to animal companions and familiars, showing pets the attention they deserve. Rather than keeping animal companions close to their natural abilities, pets improve in lockstep as characters level, making them capable of staying alive and relevant.

4. A manageable encumbrance system. D&D measures encumbrance by pound. While this system seems to add complicated bookkeeping, it proves simple in play because everyone ignores it. Pathfinder measures encumbrance by Bulk, a value representing an item’s size, weight, and general awkwardness. You can carry Bulk equal to 5 plus your strength bonus. Bulk streamlines encumbrance enough to make tracking playable. (Plus, the system charms the grognard in me by recalling a similar rule in Runequest (1978) that tracked encumbrance by “Things.”)

5. User-friendly books. Paizo devoted extra attention to making the core rulebook into an easy reference. For instance, the book includes bleed tabs, and I love them. These bleed tabs don’t show how to play a metal song on guitar; they make finding chapters easy. Unlike typical tabs that jut from the page, bleed tabs show as printed labels on the page that go to the edge and appear as bands of color. The book combines an index and glossary into a section that defines game terms, and also leads readers to pages containing more information. Every game rulebook should include these features.

6. Degrees of success. Roleplaying games often include core mechanics that determine degrees of success or failure, but D&D only offers one extra degree: a 5% chance of a critical on attack rolls. The Pathfinder 2 system delivers a critical success on a 20 and a critical failure on a 1. Also, a check that exceeds the DC by 10 or more brings a critical success and a check 10 or more less than the DC brings critical failure. Pathfinder avoids the punishing effects that make some fumble systems too swingy. For instance, a critical failure on a strike just counts as a miss. Sorry, no fumble tables that lead characters to put their eye out. Where natural, fumbles and criticals affect spell saves. For example, a successful save against Gust of Wind lets you stand your ground, and a critical save leaves you unaffected.

7. The Incapacitation trait of spells. Save-or-die spells have proved troublesome in high-level D&D play. Campaigns that build to an epic clash with a fearsome dragon instead end with the beast helpless in a force cage and stabbed to death in a dreary series of damage rolls. Pathfinder gives spells like Force Cage and Banishment the Incapacitation trait. Creatures twice or more the level of the spell typically need to fumble their save to fall under its effect. To me, this beats D&D’s solution to the same problem, legendary resistance.

8. Character customization without decision paralysis. Fourth edition D&D focused on offering players vast numbers of character options. Players uninterested in the solitary hobby of character tinkering soon found the options overwhelming. For my characters, I turned to the Internet to find character optimizers who sifted through countless options and helped me choose. Pathfinder aims to give players room for character customization without forcing a bewildering number of choices. The system works by presenting character options as feats. At each level, players make selections from small menus of feats. Even first level characters of the same class can play differently, and they grow more distinct as they advance.

9. Skill DCs replace passive checks. Pathfinder dispenses with passive perception and passive insight in favor of Skill DCs, “When someone or something tests your skill, they attempt a check against your skill DC, which is equal to 10 plus your skill modifiers.” Often skill DCs work just like passive abilities, like when a stealthy character attempts to beat someone’s perception score. In the most common use of skill DCs, a sneaking creature would roll against a character’s perception skill DC.

Without passive perception, a game master must roll secret perception checks to learn if exploring characters spot traps. Passive perception aims to eliminate such die rolls, but I consider rolls to find hidden traps useful. Without a roll, DMs just compare set DCs verses passive scores. DMs who know their players’ scores decide in advance what traps get found, with no luck of the roll to make the game surprising. Skill DCs also replace opposed ability checks—a second core mechanic with skewed odds that clutters the D&D rules.

10. Limited opportunity attacks. To encourage more movement in combat, Pathfinder 2 limits the characters and creatures capable of making opportunity attacks. At first level, only fighters start with the capability. Opportunity attacks mainly existed to help front-line characters protect the unarmored magic users in the back, but D&D and Pathfinder make once-fragile character types more robust now. Opportunity attacks make sense as a fighter specialty, especially if that encourages more dynamic battles.

That makes 10 things I like. What do I dislike?

Pathfinder 2 features a proficiency system that leads to the sort of double-digit bonuses that D&D players last saw in fourth edition.

In trained skills, every Pathfinder 2 character gets a bonus equal to at least 2 plus their level. This steady advance makes characters feel more capable as they level and rewards players with a sense of accomplishment as their characters improve. “The best part about proficiencies is the way they push the boundaries for non-magical characters, particularly those with a legendary rank,” writes designer Mark Seifter. “Masters and especially legends break all those rules. Want your fighter to leap 20 feet straight up and smash a chimera down to the ground? You can do that (eventually)!”

As in fourth edition, Pathfinder game masters can justify the sky-high DCs needed to challenge high-level characters by describing obstacles of legendary proportions. At first level, the rogue must climb a rough dungeon wall; by 20th level, she must climb a glass-smooth wall covered in wet slime—in an earthquake. At first level, you must negotiate with the mayor; by twentieth level, he’s king. And you killed his dog.

At least as often as fourth-edition dungeon masters flavored higher DCs as bigger challenges, they just paired routine challenges with higher numbers. That tendency leads to the downside of such steep increases in proficiency. In practice, characters usually just advance to face higher and higher numbers for the same challenges. In fourth edition, a steady rise in attack bonuses and armor classes meant that monsters only made suitable challenges for a narrow band of levels. This may also apply to Pathfinder 2.

I favor fifth edition’s bounded accuracy over the steep increases in proficiency bonuses featured in Pathfinder 2. For more, see Two Problems that Provoked Bounded Accuracy.

Aside from these 11 things, how does Pathfinder differ from its sibling Dungeons & Dragons?

Gamers often describe Pathfinder as more crunchy—more rules heavy—than fifth edition. After all, the core rulebook spans 638 pages! But that book includes content that D&D splits between the Player’s Handbook and Dungeon Master’s Guide, and those books include almost exactly the same number of pages. In some ways, Pathfinder proves simpler. For instance, its system actions and reactions simplifies D&D’s action types. Still, Pathfinder devotes more crunch to describing outcomes and conditions. For example, in D&D, characters make a Strength (Athletics) check to climb, but the DM gets no help determining the outcome of a failure. Pathfinder describes outcomes: A climb failure stops movement; a critical failure leads to a fall. D&D describes 14 conditions; Pathfinder describes 42.

Without playing more Pathfinder 2, I feel unready to label this post as a review. Nonetheless, I like most of what I see and I’m eager to play the game more.

The obvious innovation in fifth-edition Dungeons & Dragons that no designer saw before

Stirrups. Zero. Shipping containers. Luggage with wheels. All these innovations seem obvious in hindsight. But they went undiscovered for millennia, until someone’s bright idea changed the world—or at least put airport porters out of work. Even those hotel shower rods that curve out made someone rich.

Fifth edition Dungeons & Dragons includes one obvious-in-hindsight innovation that Gary and the game’s other past designers failed to spot. Alas, it won’t make anyone rich.

Way back in my analysis of bounded accuracy, I explained how attackers in D&D Next tended to hit harder as they leveled up, rather than hitting more often. In “Changing the balance of power,” I wrote that fighters suffered from this new design. “The accuracy-for-damage trade matters most to fighters. Fireball and Blade Barrier work as well as ever. The rogue remains content to sneak up on the goblin king.” But if the Queen of Battle confronts a goblin horde, and she only makes one attack per turn, no amount of extra damage matters, because she can only fell one goblin per turn. “Fighter-types should hew through the rabble like grass until, bloodied and battle worn, they stand triumphant. Instead, they wind up muffing to-hit rolls against one mook.

Sverrir by ArboEarlier editions of the game offer a solution, a solution so odious that I hesitate to mention it. If fighters gain multiple attacks per round, the misses matter less because there’s more where that came from!

Multiple attacks seemed bad because they always brought awkward memory demands and calculation. “D&D’s designers have struggled to parcel out extra attacks as fighters gain levels. Jumping from one attack directly to two results in a rather sudden leap in power. Instead, AD&D gave fighters extra half attacks, and a need to remember half attacks. Third edition traded half attacks and the memory issue for weaker attacks and fiddly attack penalties. Yuck.

If D&D Next’s designers can find a good way to allow fighters to gain multiple attacks against weaker opponents, then a key piece of the Next design puzzle falls into place.

Late in D&D Next’s creation, the designers compared the benefits each class gained as they leveled and noticed that wizards leap in power at 5th and at 11th levels. These jumps come from quirks of a spell list that dates to the beginning of the game. At 5th level, wizards gain potent attack spells like Fireball, plus unbalancing buffs like Haste. At 11th level, wizards gain 6th-level spells, which bring save-or-die effects like Disintegrate. At the 9th spell level, Gary Gygax felt comfortable stashing world-altering spells like Wish and Time Stop, because his players never reached 17th level and never gained free access to them.

Earlier editions of D&D aimed to parcel out benefits smoothly as characters leveled up. Those edition’s designers ignored the leaps in power certain spells brought; the fifth-edition designers embraced the leaps.

This brought the obvious-in-hindsight innovation: Rather than offering fighters half attacks or fiddly attack penalties, 5E matches the leaps in power brought by additional attacks to the leaps brought by 3rd, 6th, and 9th-level spells. Fighters gain extra attacks as wizards gain these spells. At the same levels, other classes make similar leaps, such as the rogue’s Uncanny Dodge ability.

Third and fourth editions arbitrarily aligned the game’s tiers with 10th and 20th levels, because of round numbers. Fifth edition aligns the game’s tiers with the leaps in power brought by 3rd, 6th, and 9th-level wizard spells. The designers finessed the other classes so they gain benefits to match the wizards’ gains.

It seems obvious now. Designer Mike Mearls says that a lot of innovations in game design work that way.

Proficiency and bounded accuracy in D&D Next

In my last post, I wrote about how the Dungeons & Dragons Next proficiency bonus jams all the tables and rules for attack bonuses and saving throw bonuses and check bonuses into a single rising bonus. This consolidation yields a simpler system, but the proficiency mechanic influences every corner of the game.

Attack roll tables from D&D Rules Cyclopedia

Attack roll tables from D&D Rules Cyclopedia

Proficiency bonuses increase slowly compared to similar bonuses in earlier versions of the game. They top at a mere +6 at 19th level. This slow progression stems from a principle the designers called bounded accuracy, because none of the designers come from the marketing team. Actually, “accuracy” refers to bonuses to the d20 rolls made to-hit, land spells, and make checks. Accuracy is “bounded” because the game no longer assumes characters will automatically gain steep bonuses as they advance to higher levels. See the Legends and Lore post, “Bounded Accuracy” for more.

Bonus to attack

Before third-edition D&D, armor class never rose much. In “‘To Hit’ vs. Armor Class,” longtime D&D designer Steve Winter charts the progression between to-hit rolls and AC. Steve concludes, “In AD&D, as characters advance up the level scale, they constantly gain ground against the monsters’ defenses. A 15th-level fighter doesn’t just hit lower-level monsters more often; he hits all monsters, even those of his own level, more reliably than before.”

This meant that rising attack bonuses eventually made attack rolls into a formality. Mechanically that works, because in early editions, as fighters’ gained levels, their damage increased not because each blow dealt more damage, but because they hit more often.

But attack rolls benefit D&D for two reasons:

  • Hit-or-miss attack rolls add fun. To-hit rolls offer more drama than damage rolls, and the rolls provide intermittent, positive reinforcement to attacks. See “Hitting the to-hit sweet spot” for more.
  • If to-hit bonuses overwhelm armor bonuses, armor and armor class becomes meaningless to high-level combatants. Perhaps this finally explains the chainmail bikini.

To keep attack rolls meaningful, fourth edition makes ACs rise automatically, even though nothing in the game world justifies the rise. (You might say that the rise in AC reflects combatants’ rising ability to evade attacks, but a rise in hit points reflects the same slipperiness.) The steep rise in AC meant that lower-level creatures couldn’t hit higher-level combatants and forced all battles to feature combatants of similar levels. In 4E, physical armor just provides a flavorful rational for the AC number appropriate for a level and role.

D&D Next returns to the older practice of making armor class a measure of actual armor, or at least something equivalent. At high levels, the game keeps to-hit rolls meaningful by limiting the proficiency bonus to that slight +6 at 19th level. With such a small bonus, to-hit rolls never climb enough to make armor pointless. For more, see “Bounded accuracy and matters of taste.”

In the last public playtest, and for the first time in D&D history, every class shares the same attack bonuses. In Next, characters don’t stand out as much for how often they hit as for what happens when they hit.

Bonus to checks

In third and fourth editions, characters gained steep bonuses to skill checks as they advanced in levels. Each game managed the bonuses in a different way, and each approach led to different problems.

In 3E, characters who improved the same skills with every level became vastly better at those skills than any character who lacked the skill. Eventually, DCs difficult enough to challenge specialists become impossible for parties that lacked a specialist. On the other hand, DCs easy enough to give non-specialists a chance become automatic for specialists. By specialists, I don’t mean a hyper-optimized, one-trick character, just a character who steadily improved the same skills.

In 4E, skills grant a constant, +5 bonus, and every character gains a half-level bonus to every check, so everyone gets steadily better at everything. This approach means that no character grows vastly better than their peers at the same level. It does mean that by level 10, a wizard with an 8 strength gains the ability to smash down a door as well as a first-level character with an 18 strength. To keep characters challenged, and to prevent suddenly mighty, strength-8 wizards from hulking out, 4E includes the “Difficulty class by level” table which appears on page 126 of the Rules Compendium. With this table in play, characters never improve their chance of making any checks, they just face higher DCs. Most players felt like their characters walked a treadmill that offered no actual improvements.

For more on checks in 3E and 4E, see “Two problems that provoked bounded accuracy.”

With the proficiency bonuses, D&D Next attempts to thread a needle. High-level bonuses should not reach so high that challenges for proficient characters become impossible for the rest. But the bonuses should go high enough to give proficient characters a chance to stand out and shine.

At the top end, a 19th-level character with an suitable 20 ability score and proficiency will enjoy a +11 to checks. This bonus falls well within the 1-20 range of a die roll, so most tasks within reach of specialist also fall within the ability of an lucky novice. If anything, the maximum +11 for a talented, proficient, level-20 superhero seems weak.

Two bonuses form that +11, the proficiency bonus and the ability modifier. To me, a proficiency bonus that starts at +2 at level 1 and rises to +6 at level 19 threads the needle well enough.

New characters gain a +2 proficiency bonus as opposed to the +4 or +5 skill bonuses in the last two editions. This paints new D&D Next characters as beginners, little better than untrained. New characters must rely on talent to gain an edge.

However, talented characters barely gain any edge either. Typical new characters gain a +3 ability modifier from their highest score. I’ve shown that ability modifiers are too small for checks. Players make 11.3 attack rolls for every 1 check, according to plausible research that I just made up. With so many attacks, a +3 to-hit bonus lands extra hits. With so few checks, a +3 bonus ranks with the fiddly little pluses that the designers eliminate in favor of the advantage mechanic.

The playtest package’s DM Guidelines advise skipping ability checks when a character uses a high ability score: “Take into account the ability score associated with the intended action. It’s easy for someone with a Strength score of 18 to flip over a table, though not easy for someone with a Strength score of 9.” The D&D Next rules demand this sort of DM intervention because the system fails to give someone with Strength 18 a significant edge over a Strength 9 character. The result of the d20 roll swamps the puny +4 bonus. In practice, the system math makes flipping the table only sightly easier at strength 18.

Update: The published game grants level-one characters a +2 proficiency bonus as opposed to the +1 that appeared in the final playtest.

In a curious move, the final public playtest packet eliminates the Thievery skill. Instead, the designers opt to make thieves proficient with thieves’ tools. Why? This results from the elimination of fiddly little pluses such as the +2 once granted by thieves’ tools. Without the +2, why bother with the tools? Now thieves need the tools to gain their proficiency bonus. Somewhere, sometime, a confused player will add a proficiency bonus that they assume they have for thievery, to a bonus for the tools, and double-dip two bonuses.

Next: Saving throw proficiency and ghouls

Multiple attacks, ability checks, and keyed illustrations revisited

Murder In Baldur's Gate Launch Weekend

Murder In Baldur’s Gate Launch Weekend

At Gen Con 2013, I’ll be running the Dungeons & Dragons Next adventure Murder in Baldur’s Gate most mornings and afternoons. If you attend Gen Con, check my photo in my About section, and then find me and say hello. In real life, I’m less grainy and less out of focus.

I have yet to run D&D Next, so I’m studying the latest rules packet. After the convention, I plan to write some posts discussing aspects of the design. Until then, I want to revisit a few topics.

In “Changing the balance of power,” I told how D&D Next’s flattened to-hit bonuses weakened high-level fighters against low-level enemies. “Fighter-types should hew through the rabble like grass until, bloodied and battle worn, they stand triumphant. Instead, they wind up muffing to-hit rolls against one mook.” I mentioned that restoring multiple attacks would restore the balance. Perhaps the designers reached the same conclusion, because the latest playtest packet grants multiple attacks to fighters and to some other classes.

The playtest package’s DM Guidlines advise skipping ability checks when a character uses a high ability score: “Take into account the ability score associated with the intended action. It’s easy for someone with a Strength score of 18 to flip over a table, though not easy for someone with a Strength score of 9.” As I explained in “In D&D Next, ability modifiers are too small for the ability check mechanic,” the current D&D Next rules practically require this sort of DM intervention because the system fails to give someone with Strength 18 a significant edge over a Strength 9 character. The result of the d20 roll swamps the puny +4 bonus. In practice, the system math makes flipping the table only sightly easier at strength 18.

Ulder Ravengard card from Murder in Baldur's Gate

Ulder Ravengard card from Murder in Baldur’s Gate

In “It’s Mathemagical!,” Mike Mearls discusses plans to introduce escalating ability-check bonuses of up to +12. This may finally give exceptional characters a chance to stand out from ordinary characters—at least at higher levels. Still, the game screams for a system where abilities grant bigger bonuses to ability checks. If a +1 bonus per ability point worked for Moldvay in 1981, then it works in Next. Why not adopt the steeper bonuses? I assume that the designers feel wedded to using the same ability bonuses for ability checks as for attacks and saves.

Way back in “Picturing the dungeon – Other publishers revive keyed illustrations,” I praised the face cards Paizo produces to accompany their adventure paths, so I’m delighted to see similar cards packaged with the Murder in Baldur’s Gate launch adventure.

Pyramid of Shadows - View of the Bridge

Pyramid of Shadows – View of the Bridge

In “Picturing the dungeon – keyed illustrations,” I shared my love of the keyed illustrations included in some early adventures. I lamented how TSR and Wizards seemed to have abandoned this enhancement. Recently, a clearance sale prompted me to buy most of the 9 original adventures shipped for fourth edition. To my surprise, many of these adventures include keyed illustrations. In Pyramid of Shadows, a dungeon with a classic feel, the illustrations seem to hold clues to the adventures or show complicated scenes too difficult to describe, so the pictures compliment the adventure perfectly. In some of the other adventures, the illustrations simply add flavor.

Changing the balance of power

(This post continues a discussion I started in “What does D&D have to do with ironclad ships?”)

Axe_of_Dwarvish_LordsSkip Williams‘s second edition adventure Axe of Dwarvish Lords staged a type of battle no Dungeons & Dragons adventure has tried before or since. This adventure pitted 13-15 level characters against a warren full of goblins. As you might expect, the warren’s individual goblins typically only hit on a 20, and only because everything hits on a 20. If one earned a lucky shot, he would inflict minimal damage.  With any edition’s standing rules, 13th-level character faced with goblins would simply grind out countless attacks against inconsequential resistance. With any edition’s standing rules, this scenario fails. So Skip cheated, I mean, he designed new rules. The adventure adds two pages of rules for group tactics that allow the goblins to do things like volley arrows in area attacks, and to combine melee attacks to earning bonuses to hit. In this fourth-edition era, we’re used to monsters making exceptions to the rules, but not in 1999. Back then, monsters broke the rules because a bad DM thought he could win D&D. Personally, I liked the way the new rules enabled an otherwise unplayable confrontation, but when the goblins start breaking the rules as previously understood, I can imagine some players calling a cheat.

For the first time in D&D’s history, the next iteration attempts to enable playable confrontations between powerful characters and hordes of weak monsters, without resorting to special rules. The key, as I discussed in “Hitting the to-hit sweet spot,” is arranging everyone’s to-hit bonuses and armor classes into the small range that grants everyone a reasonable chance to hit.

D&D Next hits the sweet spot by limiting the to-hit bonuses characters gain in exchange for greater bonuses to the damage they inflict.

This exchange intentionally shifts one aspect of the game’s balance of power.

Low-power combatants benefit against high-power opposition

Mobs of weak monsters can threaten higher level characters, still be able to hit, and let their numbers overcome the characters’ higher hit points. On the flip side, the dungeon master can pit parties against fewer, more powerful monsters, without having to select monsters specifically designed as a solos or elites. This re-enables the sort of sandbox play where players can choose a difficulty level by plunging as deep into the dungeon as they dare.

High-power combatants lose against low-power opposition

When your legendary hero faces goblins, the damage each blow deals hardly matters, because dead is dead. But your hero’s chance of hitting a lowly goblin rarely improves. Your hero feels like a zero.

Meanwhile, in the DM’s chair, if you want to pit a single giant against a party of lower-level characters, the fight can go badly. The giant’s one attack often misses, but when it hits, it kills. As a DM, I still prefer a solo with lots of attacks, each inflicting lower damage. If monster designers look to give brutes alternate attacks that threaten many targets at once, then we enjoy the best of both worlds.

Fighters suffer the most

The accuracy-for-damage trade matters most to fighters. Fireball and Blade Barrier work as well as ever. The rogue remains content to sneak up on the goblin king. But fighter-types should hew through the rabble like grass until, bloodied and battle worn, they stand triumphant. Instead, they wind up muffing to-hit rolls against one mook.

The game could stick with logarithmic power curves and narrow tiers of level-appropriate monsters, but I think better fixes exist.

For example, cleave-like maneuvers help by spreading damage across a string of attacks, but if your fighter’s first attack misses, your turn finishes and all the goblins laugh at you. Next’s whirlwind attack maneuver lets a fighter attack several adjacent enemies with a single attack roll, but fanning a bunch of goblins somehow seems even less heroic than missing just one.

Is the medicine worse than the disease?

Earlier editions of the game offer a solution, a solution so odious that I hesitate to mention it. If fighters gain multiple attacks per round, the misses matter less because there’s more where that came from!

Multiple attacks stink because resolution takes too long, especially if the fighter must roll damage and resolve each attack before moving on to the next swing. Also, D&D’s designers have struggled to parcel out extra attacks as fighters gain levels. Jumping from one attack directly to two results in a rather sudden leap in power.  Instead, AD&D gave fighters extra half attacks, and a need to remember half attacks.  Third edition traded half attacks and the memory issue for weaker attacks and fiddly attack penalties. Yuck.

Multiple attacks also solve a problem Mike Mearls mentioned in a tweet.  “Ability mod to damage unbalances at low levels, is irrelevant at high levels.” Without multiple attacks per round, a high-level fighter’s strength bonus to damage becomes inconsequential. With multiple attacks, each attack benefits from the bonus.

If D&D Next’s designers can find a good way to allow fighters and brutish monsters to gain multiple attacks against weaker opponents, then a key piece of the Next design puzzle falls into place.

Next:  Tracking initiative (I’m done with theory for a while.)

D&D Next trades to-hit bonuses for enhanced damage

(This post continues a discussion I started in “What does D&D have to do with ironclad ships?”)

As I discussed in “Riding the power curve,” the next iteration of Dungeons & Dragons attempts to straighten out fourth edition’s logarithmic power curve by refusing to let characters benefit from both steep bonuses to hit and big increases to damage. Instead, characters mostly get increases to damage.

When we compare D&D Next to early editions, Next limits the to-hit bonuses characters gain as they advance in exchange for greater bonuses to the damage they inflict.

Before I delve into the benefits and drawbacks of this exchange, I ought to address two practical objections to trading to-hit bonuses for damage.

Should skill increase damage?

Some argue that a more skillful combatant’s blows should not deal more damage. After all, a crossbow bolt always hits with the same force, so it should always strike with the same damage. Personally, when I’m struck by a crossbow bolt, I care deeply about where it hits. Maybe that’s just me.

Miyamoto MusashiAs I explained, in “The brilliance of unrealistic hit points,” hit points in D&D work as a damage-reduction mechanic. As characters increase in level, their rising hit points reduce the effective damage they suffer. Reasonably, as characters increase in level, they could also grow better at inflicting damage by overcoming defenses to strike vulnerable places or to apply more force to a blow.  I’m no Miyamoto Musashi, but I’ve earned enough bruises sparring with practice swords to know that finding an opening to tap an opponent demands less skill than finding enough room for a kill strike─or even a cut.

And if you worry about unusual cases of oozes struck by crossbows, adjust at the table.

“The primary thing when you take a sword in your hands is your intention to cut the enemy, whatever the means. Whenever you parry, hit, spring, strike or touch the enemy’s cutting sword, you must cut the enemy in the same movement. It is essential to attain this. If you think only of hitting, springing, striking or touching the enemy, you will not be able actually to cut him.” Miyamoto Musashi, The Book of Five Rings

Hits inflict more than damage

In D&D, a hit can bring the threat of poison, level drain, and many other secondary effects. In these cases, the attack’s damage matters less than dealing the hit. A higher level character’s chance to hit improves less, so their chance of inflicting secondary effects sees little improvement.

This matters, but it matters less than you may think.

First, to-hit rolls take a much smaller place in D&D Next than in 4E. D&D Next switches from non-AC defenses back to saving throws. Virtually all spell attacks return to skipping the to-hit roll entirely.

Second, attacks versus AC return to focusing on damage. To an extent, I liked how 4E added tactical richness to combat by devising interesting attacks. However, for my taste, too many effects appeared in play. I grew tired of seeing combatants perched on stacks of Alea markers, unable to do anything but stand and make saves.

In D&D Next, as in early editions, weapon attacks mostly inflict damage, and the attacks that threaten something like poison or level drain usually come from monsters.

carrion crawlerThird, the saving throw returns as a defense against bad things other than damage. In 4E, hits against AC can inflict crippling effects without saves. Just getting hit automatically subjects you to poison, or paralysis, or whatever. In older editions, when the spider bit or the ghoul clawed, you took then damage but you also saved versus poison or paralysis. I appreciate 4E’s streamlined system, but dropping the defensive saving throw contributed to battlefields bogged down with more conditions and other markers than even the designers anticipated.

D&D Next brings back saving throws as a defense against effects like poison and level-drain. We no longer need to rely on to-hit rolls as the final test of whether a poisoned dagger drew enough blood to overcome your constitution. Because monsters make most of the attacks that poison, paralyze, drain, and so on, most players should be happy to see the save return.  Plus, despite the extra roll, the save probably speeds play by reducing the number harmful conditions that take effect.

Despite these three points, in D&D next, your high-level character is weaker when she makes attacks versus AC to inflict crippling effects. If I were to design, say, a poisoner class, I would make their chance to hit nearly automatic, and focus on saving throws as the principle defense against poison.

Next: Changing the balance of power

Bounded accuracy and matters of taste

(This post continues a discussion I started in “What does D&D have to do with ironclad ships?”)

In my last post, I wrote about how to-hit and damage bonuses contributed to Dungeons & Dragons’ power curve. When we compare D&D Next to early editions of D&D, we see a key trade off: The Next design reins in the to-hit bonuses characters gain as they advance. In compensation, characters gain greater bonuses to the damage they inflict. This trade off stems from something the designers called bounded accuracy, which spurred controversy. While most of the discussion focuses on bounded accuracy’s place in combat, in “Two problems that provoked bounded accuracy,” I wrote about bounded accuracy and ability checks.

Months ago, I wrote to explain that the influence of ability bonuses was too small for ability checks, so you might suppose I would like to see characters earning big to-hit pluses as they advance levels. But characters engage in many combats and make countless attack rolls, so even small bonuses earn big payoffs, and I’m fine with that. However, I understand that aspects of the bounded-accuracy controversy hinge on matters of taste.

In fourth edition, as characters leveled, they enjoyed steep increases in to-hit bonuses matched with continuing increases in the damage each attack dealt. This led to characters increasing exponentially in power. If you hit twice as often, and each hit does twice the damage, than you boast four times the power. Of course, monsters follow a similar power curve, so you never notice unless characters face creatures outside their narrow level band.

In character, your logarithmic increase in power feels exciting as unbeatable monsters and impossible challenges quickly become possible, and then easy.

Repainted town guardIf you want to keep suspension of disbelief, do not dare to consider the world-building implications of the 4E power curve. I checked the stats for a town guard in a heroic-tier Living Forgotten Realms adventure. As scaled for party level 10, this rank-and-file guard has AC 26 and 106 hit points. Where were these super guards a few adventures ago when the goblins attacked the town? The goblins could only hit AC26 on a 20, so they would have needed to make an average of 262 attacks on each guard to earn a kill. Of course, you can suppose that in your world, you have no super guards, but what happens when you reverse the roles, and a lone giant shows up to defeat an army?  Obviously, many players never consider this balance of power, so the game hums along. Those of us who cannot help thinking of such things find it all distasteful.

What if there are no super guards? Nowadays, the D&D rules specifically limit players to non-evil characters. In the early days, no such limitation existed. D&D focused more on killing things for selfish gains than on heroically driving back the darkness. I remember players musing that it made little sense to loot the dungeon when easy pickings lay in town. What happens when a player decides to “role play” his evil character by singlehandedly massacring and looting a town full of level-0 folk? Fortunately, my players always honored the social contract and returned to the dungeon.

Beyond the exponential power curve, players have other preferences. How high a level do you need to be before you should be allowed to hit Asmodeus on a 19? (Keep in mind, since first edition, a roll of 20 always hits.) How much of a bonus should attributes provide as compared to your per-level bonuses? I don’t think I can sway you on these matters any more than I can coax you into a new favorite ice cream flavor.

Next: D&D Next trades to-hit bonuses for enhanced damage

Two Problems that Provoked Bounded Accuracy

One of the key design features of D&D Next is something the designers call bounded accuracy. Bounded accuracy reins in the steady escalation of bonuses to checks and attacks that characters received in earlier editions. I love bounded accuracy.

To explain my affection, I want to consider two problems with (nearly) unbounded accuracy in the third and fourth edition.

Third and fourth edition both assumed a steep and steady increase of plusses to your skill numbers as your character advanced. This rewarded you with a sense of accomplishment as you saw your character improve, but the increases led to problems at higher levels.

In third edition, at each level, characters received an allotment of points to improve selected skills. If you reached high level, and concentrated your improvements on the same skills, you gained huge bonuses to those skills.

The huge bonuses created a dilemma for dungeon masters and authors trying to set DCs for high level adventures. You could set very high DCs that challenged players who specialized in a skill. These DCs were impossibly high for non-specialists, so if the party lacked a specialist in a particular skill, the task became flat out impossible. Alternately, you could set low enough DCs to give non-specialists a chance, but these DCs grant the specialists an automatic success.  (Again, by specialists, I just mean a character who concentrates skill improvements on the same skill, not a super-optimized character.)

Third edition assumes that the DM will justify the sky-high DCs required to challenge high-level specialists by describing obstacles of legendary proportions. At first level, the rogue must climb a rough dungeon wall; by 20th level, he must climb a glass-smooth wall covered in wet slime—in an earthquake. At first level, you must negotiate with the mayor; by twentieth level, he’s king. And you killed his dog.

In the skill section of the third edition Epic Level Handbook, the epic-level obstacles become absurd. Here we find the DC for balancing on clouds, sweet talking hostile creatures into sacrificing their lives for you, and so on. I understand that some folks enjoy playing characters as mythic, godlike creatures, but to me, that game doesn’t seem like D&D anymore. Given the rarity of epic play, I suspect I stand with the majority.

Fourth edition tried to resolve the problem of high-level DCs becoming either impossible for typical characters or automatic for specialists. The system grants every character a flat, half-level bonus to checks. Now skilled characters maintained a flat +5 bonus when compared to their peers. Everyone enjoyed steady increases, but no one fell too far behind. This approach fixed the math, but when you compare characters of different levels, it defies logic and breaks your suspension of disbelief.

By level 10, a wizard with an 8 strength, gains the same ability to smash down a wooden door as an first-level character with an 18 strength.

“Wow, Wiz, have you been working out?”

“Thanks for noticing. My strength will be 9 soon.”

Of course, Wiz never gets a chance to show off his new prowess, because those DC 16 wooden doors have all been replaced by level-appropriate, DC 20 barred doors.

In truth, the players never really advance because they stand on a treadmill.

You can see the treadmill on page 126 of the 4e Rules Compendium in the “Difficulty Class By Level” table. Using this table, your character no longer gets better at easy checks, she just faces higher DCs. That table makes Living Forgotten Realms adventures work across entire tiers.

Fourth edition is inconsistent about whether the rising DCs in the “Difficulty Class By Level” table represent increasingly legendary barriers in the game world. For example, the DCs for breaking doors rise as the doors become sturdier. But social skills tend to be pegged to the DC-by-level table. (The system just assumes you killed the king’s dog.) The Living Forgotten Realms adventures used for organized play mostly abandon any attempt to flavor the rising DCs as increasingly legendary challenges. The challenges never change, just the DCs.

By reining in the scale of skill bonuses as character’s advance, D&D Next solves both problems. The system does not reward players with the same magnitude of improvements as their character’s advances, but the small improvements are real improvements, not steps on a treadmill.

While bounded accuracy solves problems, characters still need to stand out from their peers. A specialist should stand out and enjoy a chance to shine. The current ability bonuses are too small to achieve this. You can read my opinion on ability bonuses and checks here.