1. Flashback: The Quest For Identity
You may have spotted this one sneak onto Xbox Live recently as a completely remastered game, but that new contender can't hold a candle to the original. Flashback pits you in the shoes of Conrad, an amnesiac dude in a dystopian sci-fi setting. Although it sounds quite generic, the Another-World-esque graphics and hostile feel of the world make this title instantly memorable for anyone who played it. This game also requires you to really think about what you're doing; there's regular puzzles, tricky jumps, deadly enemies and sparsely-placed save points which you'll go back to every time you die. Along the way you'll explore alien jungles, visit a run-down futuristic city, take part in a reality TV gameshow where it's a fight to the death, regain your memories and even enter a hostile alien world to blow it into tiny smithereens. Conrad also has access to a large selection of items, including a protective rechargeable shield, teleporter, credits to buy stuff and even a humble rock or two used to distract enemies before you shoot them down.
What other games from your childhood did we miss off this list? Add your own down in the comments and join the Facebook page for more!