Honourable mentions (i.e. 51-60): Rome: Total War, The Walking Dead, Civilization V, Final Fantasy VIII, Mass Effect, Deus Ex: Invisible War, Star Wars: Knights of the Old Republic 2, Tomb Raider 2 & Medal of Honor: Allied Assault
50. The Last of Us (PS3)
49. Starquake (Amstrad CPC 464, also on Atari, Amiga, BBC Micro, DOS, Commodore 64)
48. Prince of Persia (PS3)
47. God of War III (PS3)
46. Portal (PC, also on PS3, 360)
45. Final Fantasy VI (SNES)
44. Tomb Raider (remade as Tomb Raider Anniversary) (PC, PS1)
43. Neverwinter Nights 2+ Mask of the Betrayer expansion (PC)
42. The Witcher (PC)
41. Chrono Trigger (SNES)
40. Unreal Tournament (PC)
39. Age of Mythology + The Titans expansion (PC)
38. Tekken 3 (PS)
37. Bomb Jack (Amstrad CPC 464)
36. Shadow of the Colossus (PS2)
35. Dishonored (PC)
34. Bioshock Infinite (PC)
33. Metal Gear Solid 4: Guns of the Patriots (PS3)
32. Call of Duty (PC)
31. Final Fantasy X (PS2)
30. Portal 2 (PC)
29. Starcraft (PC)
28. Assassins Creed II (PS3)
27. Fallout 3 (PC)
26. Gran Turismo 5 (PS3)
25. Starcraft 2 (PC)
24. Elder Scrolls III: Morrowind (PC)
23. Neverwinter Nights + Expansion packs (PC)
22. Call of Duty 4: Modern Warfare (PC)
21. The Witcher 2 (PC)
20. Metal Gear Solid 3: Snake Eater (PS2)
19. Age of Empires II & The Conquerors expansion (PC)
18. Legend of Zelda: Link's Awakening (GB)
17. Grand Theft Auto: San Andreas (PS2, PC)
16. Metal Gear Solid (PS)
15. Uncharted 2: Among Thieves (PS3)
14. Star Wars: Knights of the Old Republic (PC)
13. Half-Life & Half-Life Source & The Black Mesa mod (PC)
12. Age of Empires & The Rise of Rome expansion (PC)
11. Grand Theft Auto V (PS3)
10. Mass Effect 3 (PC)
9. Elder Scrolls V: Skyrim + DLC & mods (PC)
8. Final Fantasy VII (PS, PC, PSN)
7. Super Mario World (SNES)
6. Elder Scrolls IV: Oblivion + DLC & mods (PC)
5. Dragon Age: Origins (PC)
4. Mass Effect 2 (PC)
3. Deus Ex: Human Revolution + Director's cut (PC)
2. Half-Life 2 + Episodes 1 & 2 (PC)
1. Deus Ex (PC)