Game Pass day-one titles are marked with (GP).
December 1
- Marvel Cosmic Invasion (GP) – Pixel-art Marvel beat 'em up with co-op
- Crime Simulator – Stealth/heist game
- Seven Days Until Morning – Survival on Pluto
December 2
- Brok: The Bar Brawl – Co-op fighter + detective story
- Cute Bonfire – Cozy pixel puzzle
- Elon and Friends: Winter Pack – 13 mini-games bundle
- Sleep Awake – Psychedelic horror
- Slimeboo – One-button platformer
December 3
- Octopath Traveler 0 – HD-2D turn-based RPG with town-building
- Caput Mortum – Retro horror dungeon crawler
- Dungeons and Ducklings – Roguelite duck rescue
- Malachite: Temple of the Sun – Match-3 adventure
- Octo Curse – Pirate octopus platformer
- RoboHero – Sci-fi sokoban puzzles
- Winterlight – Where Silence Says it All – Narrative adventure
- Yakuza: Shadows of New York – Crime action-adventure
December 4
- Blood: Refreshed Supply – Remastered classic shooter
- Routine (GP) – Sci-fi lunar-base horror
- Baseless – Gravity-shifting shooter
- Detective – Rainy Night – Motel mystery
- Finding America: The Heartland Collector's Edition – Hidden object
- Mist: Evolution – Idle RPG horror
- The Phantom – Beat 'em up
- ReSetna – Sci-fi warrior action
- Sacrifice For Sale – Cult negotiation interactive story
- Sophie’s Animal Clinic – Mission Wildlife Park – Vet sim
December 5
- I’m on Observation Duty 8 – Surveillance horror
- Connect It! – Color-linking puzzles
- M.A.U.S – Defense machine sim
- Pixapple Adventures – Platformer
- Santa’s World – Christmas platformer
- Security Booth: Director's Cut – ID-checking horror
- Speed Factor – Retro racer
- Stacky Dash – Tile-collecting racer
- Tank Mechanic Simulator – Reinforced – WWII tank restoration
Enjoy the new releases!
