- Hack, Slash, Loot
- Hacker Evolution
- Half-Life
- Half-Life 2
- Half-Life 2 / Source Third-Party Mods
- Half-Life 2: Deathmatch
- Half-Life 2: Episode One
- Half-Life 2: Episode Two
- Half-Life Deathmatch: Source
- Half-Life Mods
- Half-Life: Blue Shift
- Half-Life: Opposing Force
- Hamilton’s Great Adventure
- Hammerfight
- Hard Reset
- Harvest: Massive Encounter
- Haunted Hells Reach, The
- Hazen
- Hearts of Iron series
- Hector: Badge of Carnage
- Hegemony Gold
- Helldorado
- Heretic: Shadow of the Serpent Riders
- Hero Academy
- Heroes of Annihilated Empires
- Heroes of Might and Magic V
- Heroes of Might and Magic VI
- Hexen series
- Hinterland
- History Channel series
- Hitman series
- HOARD
- Homefront
- Hunted: The Demon’s Forge
- Hydrophobia: Prophecy
- iBomber Defense
- I-Fluid
- Ignite
- IL-2 Sturmovik: 1946
- i'm not alone
- Imperium Romanum: Gold Edition
- Indiana Jones series
- Indie Game: The Movie
- Indigo Prophecy
- inMomentum
- Infernal
- Inside a Star-Filled Sky
- Insane 2
- Insanely Twisted Shadow Planet
- Inversion
- Ion Assault
- Iron Front: Liberation 1944
- Iron Brigade
- Iron Grip series
- Iron Warriors: T-72 Tank Command
- ItzaBitza & ItzaZoo
- Jade Empire: Special Edition
- Jagged Alliance Series
- James Bond: Blood Stone
- James Cameron’s Avatar: The Game
- Jamestown
- Joint Operations series
- Joint Task Force
- Jolly Rover
- Juiced 2: Hot Import Nights
- Jurassic Park: The Game
- Just Cause series
- Kane & Lynch series
- Kaptain Brawe: A Brawe New World
- Killing Floor
- King Arthur series
- Kingdoms of Amalur: Reckoning
- Kingpin
- King's Bounty series
- King's Crusade, The
- King's Quest Collection
- Knights of Honor
- Kohan series
- KrissX
- Krater
- Kung Fu Strike
- Larva Mortus
- L.A. Noire
- Law & Order: Legacies
- Last Remnant, The
- Lead and Gold
- Left 4 Dead
- Left 4 Dead 2
- Legend of Grimrock
- Legendary
- Legends of Pegasus
- LEGO Batman
- LEGO Harry Potter
- LEGO Indiana Jones
- LEGO Star Wars
- Light of Altair
- Lightfish
- LIMBO
- Line Rider 2: Unbound
- Loki
- Longest Journey, The
- Lone Survivor
- LOOM
- Lord of the Rings series, The
- Lost Horizon
- Lost Planet series
- Lucidity
- Lucid
- Lumines
- Lunar Flight
- Luxor series