- Gothic [I/2001]
- Gran Turismo 7
- Grand Mer
- Grand Theft Auto 4
- Grand Theft Auto 5
- Grand Theft Auto: Episodes from Liberty City
- Grand Theft Auto: The Trilogy - The Definitive Edition
- Grand Theft Auto: Vice City
- Gratuitous Space Battles
- Great Whale Road, The
- Grepolis
- Grim Dawn
- Grim Guardians: Demon Purge
- Grit
- Ground War: Tanks
- Guild Wars 2
- Guitar Hero 3: Legends of Rock
- Guitar Hero: Aerosmith
- Gundog
- GunFleet
- GunSwords: Tin Soldiers
- Gwent: The Witcher Card Game
- Gyro13: Steam Copter Arcade
- Hades
- Half-Life 2
- Halo Infinite
- Halo: Reach
- Hamilton's Great Adventure
- Happy Tale
- Hard West 2
- Hardcore Mecha
- Hearthlands
- Hellgate: London
- Hellraid
- Hero Academy
- Hero-U: Rogue to Redemption
- Heroes of Annihilated Empires
- Heroes of Might and Magic 5
- Heroes of the Storm
- Herokon Online
- Hero's Saga Laevatein Tactics
- Heva Clonia Online
- Hex: Shards of Fate
- Highlands
- Hitman 3
- Hitman: Absolution
- Hitman: Blood Money
- Hitman: Contracts
- Journey to Hell
- Homefront
- Homeworld Mobile
- Honey Select
- Honey Select 2: Libido
- Honey Select: Party
- Horizon Chase
- Horizon: Forbidden West
- Horror Story: Hallowseed
- htoL#NiQ: The Firefly Diary
- Human: Fall Flat
- Hungry Shark Evolution
- Huntsman: The Orphanage
- Hyperdimension Neptunia
- Icarus
- Icewind Dale
- Icewind Dale 2
- Icewind Dale: Enhanced Edition
- Icycle: On Thin Ice
- IL-2 Sturmovik: Birds of Prey
- Illusia 2: Melody of Dream
- Immortality
- In Space We Brawl
- Indigo Prophecy
- Inertia: Escape Velocity
- Infestation: Survivor Stories
- Infinity Runner
- Injustice: Gods Among Us [I/2013]
- InMomentum
- Inquisitor, The
- Interstellar Marines
- Inversion
- Invisible, Inc.
- Iron Sky: Invasion
- Ironkill: Robot Fighting Game
- IS Defense
- J.U.L.I.A.
- Jack Lumber
- Jagged Alliance: Back in Action
- Jagged Alliance: Flashback
- Jimmy vs. Zombies
- Kalonline
- Kart n' Crazy
- KartRider Pit
- Katawa Shoujo
- Kerbal Space Program
- KickBeat
- Killzone
- Killzone 3
- Killzone: Liberation
- Killzone: Mercenary
- King of Fighters-i 2012, The