Dungeon Keeper 1+2.
Both are among my most favorite games ever.
Evil wins by default in these games. You play as a dungeon lord. The goal is to build a dungeon to attract creatures which kill all those disgusting heroes who enter your dungeon for loot and fame.
I will soon play the inofficial remake of DK2, called War for the Overworld. Trailer: https://wftogame.com