Off-Steam
Call of Duty
Call of Duty 2
Call of Duty 4: Modern Warfare
Call of Duty: World at War
Gothic 3
Grand Theft Auto: San Andreas
Mafia II (Classic)
Minecraft
Plants vs. Zombies: Game of the Year
Prototype 1
Vietcong 1
Vietcong 2
Starship Troopers
The Crew 1 - Co-op
Tom Clancy's Ghost Recon: Breakpoint - Uplay - Co-op
Tony Hawk American Wasteland

Steam
Age of Empires II (2013)
Age of Mythology: Extended Edition
Batman: Arkham Asylum GOTY Edition
Batman: Arkham City GOTY
Batman: Arkham Knight
Battlefield: Bad Company™ 2
Call of Duty: Black Ops II
Fallout: New Vegas
Green Hell
Grim Dawn
Grounded
Half-Life 1 - Co-op
Half-Life 2 - Co-op
Half-Life 2: Lost Coast - Co-op
Half-Life 2: Episode One - Co-op
Half-Life 2: Episode Two - Co-op
Half-life: Opposing Force - Co-op
Metro 2033
Metro: Last Light Redux
Metro: Exodus
Mirror's Edge
Mirror's Edge™ Catalyst
Portal 2 - Co-op
S.T.A.L.K.E.R.: Shadow of Chernobyl
S.T.A.L.K.E.R.: Clear Sky
S.T.A.L.K.E.R.: Call of Pripyat
Starbound - Co-op
SUPERHOT
Terraria
The Elder Scrolls V: Skyrim
The Forest
The Witcher 3: Wild Hunt
Titan Quest: Immortal Throne
Titan Quest Anniversary Edition
Tomb Raider
Tom Clancy's Ghost Recon® Wildlands - Co-op