- Space Rogue – v1.45.7805_124240
- Space Station Tycoon – v1.0 Hotfix
- Space Tail: Every Journey Leads Home – v1.0.0.s32bg
- Spacebase Startopia: Extended Edition – v1.1.1
- Spaceland: Sci-Fi Indie Tactics – v1.6.2.153 + Frontier DLC
- Spec Ops: The Line + 2 DLC + Multiplayer
- Spectator + Support the Developer DLC/Bonus Content
- Spectrolite – v1.3f
- Speed 3: Grand Prix + Windows 7 Fix
- Spelldrifter
- SpellForce 3 – v1.01/Update 2
- SpellForce 3: Fallen God – Build 78754 + Bonus Content + Modding Tools
- SpellForce 3: Reforced – v82637
- SpellForce 3: Soul Harvest
- SpellForce: Conquest of Eo – v01.00.26984
- SpellMaster: The Saga – v0.8
- Spells & Secrets – v1.01 + Bonus OST
- Spelunky 2 + Windows 7 Fix
- Sphere: Flying Cities – Save the World Edition – v1.0.0 (Release) + Bonus Content DLC
- Spider-Man: Shattered Dimensions (Steam)
- Spin Rhythm XD – v1.2 + 2 DLCs + Bonus OST
- Spintires: MudRunner – v18.10.18 + 3 DLCs
- Spintires: The Original Game – v1.7.1 + 6 DLCs
- Spiral
- Spirit Hunter: Death Mark II
- Spirit Hunters: Infinite Horde – v1.0.3443 (Release)
- Spirit Oath – v1.4
- Spirit of the Island – v1.0.2.3
- Spirit of the North – Build 6112756 (Enhanced Edition Update)
- Spiritfall – v1.0.05
- Spiritfarer: Farewell Edition + Bonus Content
- Spiritless Ltd. – v1.06
- Splatter
- Splice + Windows 7 Fix
- SpongeBob SquarePants: Battle for Bikini Bottom – Rehydrated – Rev. 603296 (Build 5204247 – June 23, 2020) + Multiplayer
- SpongeBob SquarePants: The Cosmic Shake – v1.0.2.0 + Costume Pack DLC
- SpongeBob SquarePants: The Patrick Star Game
- SPORE Collection – GOG DRM-free
- SPRAWL + Soundtrack Bundle – v2023.08.22.D27F0DDF1 + Bonus OST
- SPY×ANYA: Operation Memories – Deluxe Edition, v1.0.5 + 5 DLCs
- Spyro Reignited Trilogy
- Squad 51 vs. the Flying Saucers
- Squirrelmageddon! – v894
- SRX: The Game
- Star Control: Origins – v1.01.53103
- Star Drift Evolution + Multiplayer
- Star Ocean: The Divine Force – v01.01 Build 23063 (Denuvoless) + All DLCs
- Star Ocean: The Last Hope – 4K & Full HD Remaster
- Star Ocean: The Second Story R, v1.10 (Denuvoless)
- Star Renegades – v1.5.1.0 + 5 DLCs + Bonus ArtBook