With RimWorld 1.7, Ludeon Studios has moved from Unity to its own Waylith engine. According to the studio's tests, the game runs 2 to 4 times faster, while saves and the vast majority of mods keep working. There is one warning for computers more than 10 years old.
The creator of SFO: Grimhammer III, one of Total War: Warhammer III's most popular mods, deliberately broke it to stop unauthorized AI-assisted copies. The crisis lasted only days, but the question it raised will not go away.