OpenLoco, a remake of the 1998 classic game Lego Loco (github.com)

Not my project, but I've been following the creator along for a while, they documented the process on YouTube: https://www.youtube.com/playlist?list=PLI_BNw7on4XuDwe2fn9g8...

As far as I can remember they never mentioned using LLM assistance, a rare gem these days.