*Note: These are alphabetical, not in ranked order. We wouldn't dream of doing a thing like that.*
Unreal Tournament 3 single-player, 2009
The Cassandra Project
Deus Ex single-player, 2003 (episodic, but only one ever released)
Counter-Strike
Half-Life multiplayer, 1999
Dear EstherHalf-Life 2 single-player, 2008
Defence of the Ancients
Warcraft III multiplayer, 2003
Dystopia
Half-Life 2 multiplayer, 2007
Garry’s Mod
Half-Life 2 sandbox, 2005
Killing Floor
Unreal Tournament 2004 multiplayer, 2004
MechWarrior: Living Legends
Crysis multiplayer, 2009
Minerva: MetastasisHalf-Life 2 single-player, 2005-2007 (episodic)
Multi Theft Auto
Grand Theft Auto: San Andreas multiplayer, 2009
The Nameless ModDeus Ex single-player, 2009
Natural Selection
Half-Life multiplayer, 2002
Oblivion Lost
S.T.A.L.K.E.R: Shadow of Chernobyl single-player, 2008
Oscuro’s Oblivion OverhaulOblivion single-player, 2006
Project Reality
Battlefield 2 multiplayer, 2006 onwards
Radiator
Half-Life 2 single-player, 2009-2010 (episodic)
Research & Development
Half-Life 2 single-player, 2009
Team Fortress and Descendants
Various multiplayer, 1996 onwards
They HungerHalf-Life single-player, 1999-2001 (episodic)
So, what do you think? Do you agree? Do you disagree? You don't disagree, do you? That would be lunacy. Either way, head on over to www.usercreated.org and have a good old natter. And thanks again to the ModDB chaps for letting us link shamelessly to our blog.
Disagree I think. A lot of mods I agree with and some I disagree with (is killing floor really "unmissable?").