There is a wonky beta version of MOHAA that runs also, the expansions.
Postal 2 Share the Pain along with it's predecessor.
Vendetta Online. (MMORPG pay to play)
Soldier of Fortune 1. (two seems to work on emulators)
Kohan Imortal Sovereign along with it's sequals and prequels.
The Sims for Linux.
Doom 1 2 and the rest.
Hexen 1 2
There is more Windows to/and Linux games... just can't think of them... or... they are not worth mentioning.