Name Developer Publisher Genre(s) Operating system(s) Date released Papers, Please 3909 LLC 3909 LLC Puzzle , simulation Microsoft Windows , Linux , macOS August 8, 2013 ParaWorld SEK Sunflowers Real-time strategy Microsoft Windows September 15, 2006 Path of Exile Grinding Gear Games Grinding Gear Games Action RPG Microsoft Windows October 23, 2013 Pavilion Visiontrick Media [1] Puzzle , Action September 23, 2016 Payday: The Heist Overkill Software Sony Online Entertainment First-person shooter Microsoft Windows October 18, 2011 Payday 2 Overkill Software 505 Games First-person shooter Microsoft Windows August 13, 2013 Penumbra: Black Plague Frictional Games Paradox Interactive Survival horror Microsoft Windows , Linux , macOS February 12, 2008 Penumbra: Overture Frictional Games Frictional Games Survival horror Microsoft Windows , Linux , macOS March 30, 2007 Penumbra: Requiem Frictional Games Paradox Interactive Survival horror Microsoft Windows , Linux , macOS August 27, 2008 Persona 4 Golden Atlus Sega Role-playing , social simulation Microsoft Windows Phantom Doctrine CreativeForge Games Good Shepherd Entertainment Strategy Windows August 14, 2018 Pillars of Eternity Obsidian Entertainment Paradox Interactive Role-playing Microsoft Windows , Linux , macOS March 26, 2015 Pixel Piracy Quadro Delta Re-Logic Action-adventure Microsoft Windows , Linux , OS X February 16, 2016 Planetarian: The Reverie of a Little Planet Key VisualArt's , KineticNovel Visual novel Microsoft Windows November 29, 2004 Planetary Annihilation Uber Entertainment Uber Entertainment RTS Microsoft Windows , Linux , macOS September 5, 2014 PlanetSide Sony Online Entertainment Sony Online Entertainment MMOFPS Microsoft Windows May 20, 2003 PlanetSide Arena Daybreak Game Company Daybreak Game Company MMOFPS Microsoft Windows September 19, 2019 PlanetSide 2 Rogue Planet Games Daybreak Game Company MMOFPS Microsoft Windows , PlayStation 4 November 12, 2012 Playboy: The Mansion Cyberlore Studios Arush Entertainment , Groove Games Business simulation game Microsoft Windows March 4, 2005 PlayerUnknown's Battlegrounds PUBG Corporation, Lightspeed & Quantum Studios (mobile) PUBG Corporation (Windows), Microsoft Studios (Xbox One), Tencent Games (mobile) Multiplayer online game , Battle royale game Microsoft Windows December 12, 2017 Phoenotopia: Awakening Cape Cosmic Cape Cosmic Microsoft Windows , OS X Jan 21, 2021 Pokemon Planet Brody Brody MMORPG Microsoft Windows , OS X , Linux 2014 Pokémon TCG Online Dire Wolf Digital The Pokémon Company Digital collectible card game Microsoft Windows , OS X March 24, 2011 Police Quest: SWAT 2 Yosemite Entertainment Sierra FX Real-time tactics Microsoft Windows July 11, 1998 Pony Island Daniel Mullins Games Daniel Mullins Games Indie Microsoft Windows January 4, 2016 Pool of Radiance Strategic Simulations, Inc. Strategic Simulations, Inc., Pony Canyon (PC9800, X1) Fantasy , RPG MS-DOS , Amiga , Apple II , Commodore 64 , PC-9800 series , X1 1988 Pools of Darkness Strategic Simulations, Inc. , MicroMagic, Inc., Marionette (PC9800) Strategic Simulations, Inc., Pony Canyon (PC9800) Fantasy , RPG Microsoft Windows , macOS , Amiga , PC-9800 series 1991 Poptropica Jeff Kinney Group Jeff Kinney Group Virtual World Microsoft Windows , Linux , macOS July 2007 Portal Valve Valve, Microsoft Game Studios Puzzle-platform game Microsoft Windows , Linux , macOS October 10, 2007 Portal 2 Valve Valve Puzzle-platform game Microsoft Windows , Linux , macOS April 19, 2011 Postal Running with Scissors Running with Scissors Top-down shooter Android , Microsoft Windows , Mac OS , OS X , Linux November 14, 1997 Postal 2 Running with Scissors Running with Scissors First-person shooter Microsoft Windows , Linux , OS X April 13, 2003 Postal III Running with Scissors Akella Third-person shooter Microsoft Windows November 23, 2011 Postal Redux Running with Scissors Running with Scissors Shoot 'em up Microsoft Windows May 20, 2016 PP: Pianissimo Innocent Grey Innocent Grey Mystery Microsoft Windows September 29, 2009 Prince of Persia: The Sands of Time Ubisoft Montreal Ubisoft Action-adventure , puzzle-platformer , hack and slash Microsoft Windows November 6, 2003 Prince of Persia: Warrior Within Ubisoft Montreal , Pipeworks Software , Gameloft Ubisoft , Gameloft Action-adventure , platform , hack and slash Microsoft Windows November 30, 2004 Prison Architect Introversion Software Introversion Software Construction and management simulation Microsoft Windows , Linux , macOS October 6, 2015 Project I.G.I. Innerloop Studios Eidos Interactive Stealth game Microsoft Windows December 15, 2000 Project Zomboid The Indie Stone The Indie Stone Role-playing , survival horror Microsoft Windows , Linux , macOS November 8, 2013