having a good video game idea is the hardest part, which is why every single video game these days are completely unique ideas that didn’t steal at all from D&D. Hit points? Hit chance? Random damage? Class archetypes? Character Leveling and advancement? Go into dungeon, loot, avoid enemies, extract and return to safety as a play pattern? Never repeated in the AAA Diablo or Elder Scrolls games or indie games like lethal company or in an FPS like escape from tarkov. It was actually those unique ideas that were never copied that were harder than the bajillions of dollars spent on making them with code and artists. That unique, never-copied D&D idea cost jabillions and bajillions of dollars and time etc actually, much more than the billions spent on development really.

Baldurs Gate 3 didn’t just use the D&D rules and mechanics, it was a complete 100% overhaul of completely new ideas and zero re-hashes of something played in the 70s. It was because of these new innovations that was the hardest part of BG3 and all other games totally not derived of a 70s game people played on their kitchen tables that got jobs in the video game industry