- Markus Ritter: Ghosts Of The Past
- Mars 2030
- MARS 2120 – v1.0.2 + Windows 7 Fix
- Mars Horizon – v1.4.2.1
- Marsupilami: Hoobadventure
- Martha Is Dead – v1.0223.01
- MARVEL vs. CAPCOM Fighting Collection: Arcade Classics
- Marvel vs. Capcom: Infinite – Deluxe Edition
- Marvel’s Avengers: The Definitive Edition – v2.8.2 + All DLCs/Ultra Textures Pack
- Marvel’s Guardians of the Galaxy: The Telltale Series – Complete Season
- Marvel’s Spider-Man 2: Digital Deluxe Edition, v1.130.1.0/v1.131.0.0 + 2 DLCs + Unlocker + Bonus Soundtrack
- Marvel’s Spider-Man 2: Digital Deluxe Edition, v1.130.1.0/v1.131.0.0 + 2 DLCs + Unlocker + Bonus Soundtrack
- Marvel: Ultimate Alliance Bundle – 1 + 2
- Marvel’s Spider-Man Remastered – v1.812.1.0 + DLC + SSE Fix
- Marvel’s Spider-Man: Miles Morales – v1.1116.0.0 + DLC + Bonus OST
- Mary Skelter 2 + 5 DLCs
- Mary Skelter Finale + Windows 7 Fix
- Mary Skelter: Nightmares + 6 DLCs
- Mask of Sanity
- Mask of the Rose – v1.2.705 + Bonus Soundtrack
- Masquerada: Songs and Shadows – v1.10 GOG DRM-Free
- Masquerade: The Baubles of Doom – v20160501
- Mass Effect – v1.02 + 2 DLCs + Bonus Content
- Mass Effect 1: Legendary Edition – v2.0.0.48602 + DLC
- Mass Effect 2: Digital Deluxe Edition – v1.02 + DLC Bundle (All DLCs)
- Mass Effect 2: Legendary Edition – v2.0.0.48602 + All DLCs
- Mass Effect 3: Digital Deluxe Edition – v1.05.5427.124 + All DLCs
- Mass Effect 3: Legendary Edition – v2.0.0.48602 + All DLCs
- Mass Effect: Andromeda – Super Deluxe Edition v1.10 + All DLCs
- Massacre At The Mirage + Windows 7 Fix
- Massive Chalice
- Master Detective Archives: RAIN CODE Plus – Deluxe Edition, v1.6.0 + Bonus DLCs
- Master of Magic (2022) – v1.09.13.112238.14728 + 5 DLCs
- Master of Orion: Collector’s Edition + Revenge of Antares + Bonus Content
- Matchpoint: Tennis Championships – v1.6.75169 + Legends DLC
- Mato Anomalies: Digital Deluxe Edition – Build 11837913 + 8 DLCs/Bonus
- Max Payne 3: Complete Edition – v1.0.0.272 + All DLCs
- Mayhem Brawler – v2.1.9
- Mayhem in Single Valley – v4.0.00
- Mech Armada
- Mech Mechanic Simulator
- Mecha Knights: Nightmare – v1.620 + 2 DLCs
- Mechabellum – v1.0.0.4.1366
- Mechajammer
- Mechs & Mercs: Black Talons (v1.0.11.24)
- MechWarrior 5: Clans – Digital Collectors Edition, v1.0.80 + 2 DLCs
- MechWarrior 5: Mercenaries – JumpShip Edition, v1.1.354 + 7 DLCs/Bonuses
- Medieval Delivery + Windows 7 Fix
- Medieval Dynasty: Ultimate Edition – v2.0.0.1a + 4 Bonus Content DLCs
- Medieval Engineers – v0.7.2 (Official/Final Release)