Beaten:
Age of Empires II
Age of Empires III
Age of Mythology
Bioshock Infinite
Borderlands 1 & 2
Diablo II & III (through Torment X - Solo Grift Level 59)
Dishonored
Dishonored 2
King's Quest I-IV
Fallout 3
Left 4 Dead - Campaign mode, multiplayer
Mass Effect 1 & 2
Plants vs. Zombies
Portal 1 & 2
Tropico 4
Quest For Glory I, II, III & IV
Starcraft II

Not Beaten:
Dead Island
Dead Space
Dragon Age: Origins
Fallout I & II
Half-Life I & II
Kingdoms of Amalur: Reckoning
Left 4 Dead - single player, campaign mode versus
Mass Effect 3


Other:
EverQuest
Guild Wars 1&2
Hearthstone
Rift
The Sims 3
World of Warcraft + Frozen Throne