'I took those files and deleted them': Former Sims 4 developer says he totally rewrote the sims' AI in the middle of development and 'that was a scary thing to do'
in newsletterPC Gamer · 2026-03-17 · 7 min read · top_stories
Sims 4 lead AI programmer David Graham scrapped and rewrote the game's entire NPC behavior system mid-development in under a month, without formal approval. The core rewrite shipped; iteration took another two to three years.
Appeared in 2026-03-17.