serious sam, counter strike, battlefield (1942/2), psychonauts, marathon (free now btw, bungie made it open source), doom, medal of honor (NOT reboot), daggerfall, arena, chexquest, Rainbow six 3 (raven shield), jedi knight (DF2), red faction, half life, quake, Why is everyone auto forgeting anything made before xbox 1 came out? these are all loads better than anything listed here so far. marathon's story telling and stories themselves are superior to halo's watered down generic crap in every way. you guys are such huge halo fans, but you don't play marathon. (what halo was originally, back in 93/94) games like thief had superior sneaking and assassination compared to ass's crap.