Caves of Qud is a roguelike RPG full of accessibility options and good modding tools. It has a Morrowind-esque world and probably the 2nd best proc-gen of any game. Also its community is very inclusive
This is a very simple game, and the plot is very interesting.
Extremely difficult and frustrating, but with really good mechanics. One of the first 3D stealth games. Is not the best hitman, and his graphics and controls aged poorly. But is the origin of this saga and is really fun.
