I would have to say
WarCraft, StarCraft, Diablo (I'm actually surprised no one's thought of making one yet...)
Fear Effect (Bring on the gun-slinging lesbians! HUZZAH!)
Kessen/Samurai Warriors (That would actually be pretty cool!)
Serious Sam (It would probably suck in real life, but I'd see it anyway)
Mech Assault (Nuff said)
The Elderscrolls (My life would be complete)
GunGrave (I know, there's already a TV show that came before the game, but it deserves a live action movie!)
Metal Gear Solid (Hugh Jackman=Snake!)
Alone in the Dark 2 (Just kidding! 😆 )