Larian looked to popular homebrew D&D rules for Baldur's Gate 3: 'We were like—okay, we're not crazy, some people do it, so maybe we can try it as well'
Baldur's Gate 3 is a fascinating game if you're into Dungeons & Dragons 5th edition, the tabletop ruleset it's built upon—because while it's a decently faithful recreation of those rules, it also has enough homebrew nonsense (in the form of magic items and overall tweaks to the TTRPG's core systems) to stand out as its own thing.