- Oxide Room 104
- Oxygen Not Included – vU39-490405-S + Spaced Out! DLC
- Ozymandias: Bronze Age Empire Sim – v1.0.0.3
- P.A.M.E.L.A. – v1.0.0.2
- PAC-MAN MUSEUM PLUS + Bonus Figure Set DLC
- PAC-MAN WORLD Re-PAC
- Pacer
- Pacific Drive: Deluxe Edition – v1.1.1-CL26026 + DLC + Windows 7 Fix
- PACK MY STUFF
- Pact of Joy – v1.0.2
- Pagan: Absent Gods – v2.0.0.60421
- Painkiller: Complete Pack – Six Games + All DLCs + Bonus Content
- Paint the Town Red – v1.0.0 r5475
- PaintBall War 2
- Paleo Pines – v1.1.26
- Pandemic Train
- Pandora
- PANICORE: Supporter Pack, v1.0.10 + Bonus Soundtrack + Windows 7 Fix
- Panzer Corps 2: Complete Edition – v1.10.3 + 12 DLCs + Bonus Content
- Panzer Dragoon: Remake – v1.4
- Panzer Knights – v1.1.6.1 + 2 DLCs
- Paper Beast: Folded Edition
- Paper Cut Mansion – v1.3/Build 9853523
- Paper Flight: Beyond Time
- Paper Monsters Recut
- Papetura – Build 9476393
- Paradise Killer
- Paradise Lost
- Paranoia: Happiness is Mandatory
- PARANOID
- Paranormal Observation
- Paraopticon
- Parasocial – v1.07
- Parcel Corps – v98.3
- Paris in 2000 Years + Windows 7 Fix
- Park Beyond – v133.567 + 6 DLCs
- Parkasaurus – Build 5410510 / v1.00j
- Parking Tycoon: Business Simulator – Build 12661121
- Particula
- Partisans 1941: Extended Edition – v1.1.05 + 4 DLCs/Bonuses + Windows 7 Fix
- Partum Artifex
- Party Hard 2 – v1.0.007.r
- Pascal’s Wager: Definitive Edition – v1.1.1 (1000)
- Passpartout 2: The Lost Artist
- Past Cure + Update 1
- Path of the Midnight Sun
- Pathfinder: Gallowspire Survivors – v1.0.3179
- Pathfinder: Kingmaker – Definitive Edition – v2.1.0h + All DLCs
- Pathfinder: Wrath of the Righteous – Enhanced Edition – v2.1.0u + 12 DLCs/Bonus Content
- PATHOGEN X – v1.0.0.6 + Windows 7 Fix