No. 37 Doom 1993
Thee best doom and still one of the best first person shooters. The formula of picking up coloured key cards to progress a level and unlock the end is simple and something I wish they would have sticked to or return to for modern titles, it doesn't have to make sense, it's just really fun and despite the game aging very much over the years it retains it's fun like no other game I can think of. It's almost a perfect video game, almost.