M&B Warband (grew very tired of M&B after 20 hours, but now I can run the good mods)
Tribes Ascend Starter Pack
Dead Island Complete
Jagged Alliance 2 (which I had on GOG anyway)
Complete Shooter Pack
Bob Came in Pieces
Back to the Future: The Game
Realistically, JA2 may be the only one of these I put more than 10 minutes into, but I hope to be surprised.