I would say all of them, but after seeing Resident Evil (Yes I liked the Resident evil movies shut up) and a few snippits of Silent Hill, I can say that there is hope for some game-movies. but if theres any of them that would be so bad that they would most likely be made by Uwe Boll, I would have to say Starcraft, Diablo, World Of Warcraft (OH WAIT), Half Life, Halo (OH WAIT AGAIN, and besides I think halo is horribly generic and the most overrated game ever) Gears of War (OH WAIT YET AGAIN) Assassin's Creed (Oh god no, I mean, I think Im the only one who thought that the Altair plot was good but Im sure a movie would just fuck it up royally) StarFox (That one is coming from a huge Star Fox Fan), Legend Of Zelda (Another game where the outfits that people wear only look good in the game), Need For Speed (Gaurenteed that it would feature a bunch of Wankers saing "bling" every two seconds competing against another bunch of wankers who say "Bling" every two seconds) Grand Theft Auto (Thank god they said that they wouldnt do that) and Metal Gear Solid.