Baldur’s Gate 3 is a captivating recreation when you’re into Dungeons & Dragons fifth version, the tabletop ruleset it is constructed upon—as a result of whereas it is a decently devoted recreation of these guidelines, it additionally has sufficient homebrew nonsense (within the type of magic gadgets and general tweaks to the TTRPG’s core techniques) to face out as its personal factor.
Selecting what to scrap, change, and maintain hasn’t been an easy course of, nevertheless, based on Larian Studio’s co-founder Swen Vincke and design director Nick Pechenin throughout a retrospective panel at PAX West 2024 this weekend:
“We actually went by boards searching for homebrew guidelines … just like the rule the place you can not solid a full motion spell and a bonus motion spell on the identical flip,” Pechenin mentioned. For the uninitiated, D&D’s motion economic system offers gamers motion, an motion, and a bonus motion. Whereas spells that value a bonus motion to solid exist, utilizing them historically locks you out of any spell extra highly effective than a cantrip on the identical flip.
It is a fairly frequent homebrew to chuck that out of the window—even Vital Function, an precise play livestream in style sufficient to get its personal crowdfunded animated sequence, had an identical tweak current in its first marketing campaign: “[That rule was] simply one thing that incessantly fell by the wayside, so we had been like—okay, we’re not loopy, some folks do it, so possibly we are able to strive it as effectively.”
Vincke additionally takes a second to joke concerning the homebrew guidelines the crew experimented with in its early days: “We had our model—we mentioned, ‘these are our homebrew guidelines’, after which we noticed the neighborhood who did not agree with that. That was additionally an fascinating second in our careers.”

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I am responsible as charged right here, though in equity, I am glad Larian scrapped a couple of of these guidelines. For instance, unlimited-cast cantrips like Firebolt would depart damaging surfaces that made them higher than some 1st-level spells (which it’s a must to spend your restricted spell slots on). Hiding was additionally a bonus motion for everybody, taking away from the rogue’s skillset. My inside guidelines lawyer nonetheless bristles—perish the thought!
Generally, although, it was the inverse. Larian tried to faithfully implement OG mechanics and, for one motive or one other, it simply did not work. As Vincke feedback, “We had a canopy system additionally, do not forget that?” In fifth version, being behind cowl makes you tougher to hit by including a bonus to your armour class, whereas additionally including that very same bonus to dexterity saving throws. Baldur’s Gate 3, notably, would not have cowl past the precise, bodily surroundings blocking the road of sight of sure spells and assaults.
Pechenin provides that the crew “actually experimented fairly a bit with it, as a result of it is a part of D&D’s ruleset, however we simply discovered so many issues with the way it works in 3D, from a top-down digicam.”
The sport’s response system additionally modified primarily as a result of neighborhood suggestions. Throughout early entry, gamers must pre-emptively toggle what reactions they’d wish to set off on their flip. This made a number of spells and options simply plain worse—for instance, you may select to not solid Hellish Rebuke after being attacked by a hearth elemental (given they’re normally resistant or resistant to its harm kind) whereas maintaining the choice in your pocket for the mage who summoned them.
“The response system was put in place purely as a result of the neighborhood actually wished it,” Pechenin explains. “That is a very good instance of what we added in early entry that we actually did not plan. We actually hoped that we might get away with not pausing the sport as a result of it is so troublesome technically—and issues like sound actually hate if you cease issues.”
Baldur’s Gate 3 is rife with this type of stuff—for example, 5e’s grappling system is totally absent, changed with bonus motion shoves—however as a guidelines nerd myself, it is actually fascinating to see the sorts of concessions and changes you might want to make as a recreation designer when it’s a must to translate a TTRPG to code. Such a factor’s certain to carry with it its personal distinctive challenges, like determining easy methods to make the digicam cease zooming on on goblin toes.