Right at this very moment?

Non-Steam:
Minecraft 1.4
Dwarf Fortress 40d19.2
Dwarf Fortress DF2010 31.23
Dwarf Fortress DF2010 31.22
Dwarf Fortress DF2010 31.12
SimTower
World of Warcraft
Bejeweled 3

Steam:
Amazing Adventures Around The World
Blood Bowl: Legendary Edition
Empire: Total War
Fallout: New Vegas
Just Cause 2
Left 4 Dead 2
Mass Effect 2
Moon Base Alpha
Neverwinter Nights 2: Platinum Edition
Plants vs Zombies: GOTY Edition
Recettear: An Item Shop's Tale
Warhammer 40: Dawn of War - Soulstorm


And a load others I haven't installed at the moment.