4.32 Half-Life 2: Episode Two (2007)
4.19 Portal (2007)
4.17 Left 4 Dead (2008)
4.12 Vampire: The Masquerade - Bloodlines (2004)
4.10 Half-Life (1998)
4.08 Half-Life 2: Episode One (2006)
4.00 The Orange Box (2007)
4.00 SiN Episodes: Emergence (2006)
3.94 Homeworld (1999)
3.93 Half-Life 2 (2004)
3.91 Counter-Strike: Source (2004)
3.80 Zeno Clash (2009)
3.70 Ground Control (2000)
3.65 Half-Life: Opposing Force (1999)
3.61 Half-Life (Game of the Year Edition) (1999)
3.60 Throne of Darkness (2001)
3.51 Half-Life: Blue Shift (2001)
3.34 Half-Life (2001)
3.28 Gunman Chronicles (2000)
3.03 Half-Life: Counter-Strike (2000)
2.76 Counter-Strike: Condition Zero (2004)
2.76 Half-Life (Platinum) (2000)

^*Games must have at least 5 votes to be included.