データベース: O
Orbt XL
Release date: 2017. 4月 21. (PC)
Genre: Action, Casual
Developer: Nickervision Studios
Genre: Action, Casual
Developer: Nickervision Studios
Orc Assault
Release date: 2016. 5月 10. (PC)
Genre: Role-playing game, Strategy
Developer: Ghost Machine
Genre: Role-playing game, Strategy
Developer: Ghost Machine
Orcs Must Die!
Release date: 2011. 10月 11. (PC)
Genre: Action, Strategy, Tower defense
Developer: Robot Entertainment
Genre: Action, Strategy, Tower defense
Developer: Robot Entertainment
Orcs Must Die! 2
Release date: 2012. 7月 30. (PC)
Genre: Action, Strategy, Tower defense
Developer: Robot Entertainment
Genre: Action, Strategy, Tower defense
Developer: Robot Entertainment
Orcs Must Die! 3
Release date: 2021. 7月 23. (PC)
Genre: Action, Strategy, TPS, Tower defense
Developer: Robot Entertainment
Genre: Action, Strategy, TPS, Tower defense
Developer: Robot Entertainment
Orcs Must Die! Deathtrap
Release date: 2025. Q1 (PC)
Genre: Action, TPS, Tower defense
Developer: Robot Entertainment
Genre: Action, TPS, Tower defense
Developer: Robot Entertainment
Orcs Must Die! Unchained
Release date: 2017. 4月 19. (PC)
Genre: Action, MOBA, Tower defense
Developer: Robot Entertainment
Genre: Action, MOBA, Tower defense
Developer: Robot Entertainment
Order of War
Release date: 2009. 9月 22. (PC)
Genre: Strategy, RTS
Developer: Wargaming
Genre: Strategy, RTS
Developer: Wargaming
OreLight
Release date: 2015. 6月 29. (PC)
Genre: Adventure, Role-playing game
Developer: GeekBeach
Genre: Adventure, Role-playing game
Developer: GeekBeach
Ori and the Blind Forest
Release date: 2015. 3月 11. (PC)
Genre: Action, Platformer
Developer: Moon Studios
Genre: Action, Platformer
Developer: Moon Studios
Ori and the Blind Forest: Definitive Edition
Release date: 2016. 4月 27. (PC)
Genre: Action, Platformer
Developer: Moon Studios
Genre: Action, Platformer
Developer: Moon Studios
Ori and the Will of the Wisps
Release date: 2020. 3月 11. (PC)
Genre: Action, Adventure, Platformer
Developer: Moon Studios
Genre: Action, Adventure, Platformer
Developer: Moon Studios
Oriental Empires
Release date: 2017. 9月 14. (PC)
Genre: Strategy, 4X, Turn-based strategy
Developer: Shining Pixel Studios
Genre: Strategy, 4X, Turn-based strategy
Developer: Shining Pixel Studios
Original Journey
Release date: 2017. 8月 16. (PC)
Genre: Action, Adventure, Role-playing game
Developer: Bonfire Entertainment
Genre: Action, Adventure, Role-playing game
Developer: Bonfire Entertainment
ORION: Dino Horde
Release date: 2012. 5月 04. (PC)
ORION: Prelude
Release date: 2013. 4月 16. (PC)
Genre: Action, FPS
Developer: Trek Industries
Genre: Action, FPS
Developer: Trek Industries
Orwell's Animal Farm
Release date: 2020. 12月 10. (PC)
Genre: Adventure, Point & click
Developer: Nerial
Genre: Adventure, Point & click
Developer: Nerial
Orwell: Ignorance is Strength
Release date: 2018. 2月 22. (PC)
Genre: Simulation
Developer: Osmotic Studios
Genre: Simulation
Developer: Osmotic Studios
Orwell: Keeping an Eye On You
Release date: 2016. 10月 27. (PC)
Genre: Simulation
Developer: Osmotic Studios
Genre: Simulation
Developer: Osmotic Studios
Oscura: Lost Light
Release date: 2015. 2月 24. (PC)
Genre: Adventure
Genre: Adventure
Osiris: New Dawn
Release date: 2016. 9月 28. (PC)
Genre: Action, Adventure, Role-playing game
Developer: Fenix Fire Entertainment
Genre: Action, Adventure, Role-playing game
Developer: Fenix Fire Entertainment
Osmos
Release date: 2009. 8月 18. (PC)
osu!
Release date: 2007. 9月 16. (PC)
Othercide
Release date: 2020. 7月 27. (PC)
Genre: Strategy, Turn-based strategy
Developer: Lightbulb Crew
Genre: Strategy, Turn-based strategy
Developer: Lightbulb Crew
Otherworld Legends
Release date: 2022. 4月 28. (PC)
Genre: Action, Roguelike
Developer: ChillyRoom
Genre: Action, Roguelike
Developer: ChillyRoom
OTTTD
Release date: 2014. 8月 07. (PC)
Genre: Strategy, Tower defense
Developer: SMG Studio
Genre: Strategy, Tower defense
Developer: SMG Studio
Oure
Release date: 2017. 11月 15. (PC)
Genre: Adventure, Casual
Developer: Heavy Spectrum Limited
Genre: Adventure, Casual
Developer: Heavy Spectrum Limited
Out of Ammo
Release date: 2016. 4月 15. (PC)
Genre: Action, Strategy, FPS
Developer: RocketWerkz
Genre: Action, Strategy, FPS
Developer: RocketWerkz
Out of Place
Release date: TBA
Genre: Action, Adventure
Developer: Bagpack Games
Genre: Action, Adventure
Developer: Bagpack Games
Out of Reach
Release date: 2015. 6月 08. (PC)
Genre: Action, Role-playing game, MMO
Developer: Space Boat Studios
Genre: Action, Role-playing game, MMO
Developer: Space Boat Studios
Out of Space
Release date: 2019. 4月 24. (PC)
Genre: Strategy, Casual
Developer: Behold Studios
Genre: Strategy, Casual
Developer: Behold Studios
Out of the Park Baseball 15
Release date: 2014. 4月 24. (PC)
Out of the Park Baseball 18
Release date: 2017. 3月 24. (PC)
Genre: Simulation, Strategy, Sports
Developer: Out of the Park Developments
Genre: Simulation, Strategy, Sports
Developer: Out of the Park Developments
Out of the Park Baseball 19
Release date: 2018. 3月 22. (PC)
Genre: Simulation, Strategy, Sports
Developer: Out of the Park Developments
Genre: Simulation, Strategy, Sports
Developer: Out of the Park Developments
Out There Somewhere
Release date: 2016. 3月 14. (PC)
Genre: Adventure, Platformer
Developer: MiniBoss
Genre: Adventure, Platformer
Developer: MiniBoss
Out There: Oceans of Time
Release date: 2022. 5月 26. (PC)
Genre: Adventure
Developer: Goblinz Studio, Mi-Clos Studio
Genre: Adventure
Developer: Goblinz Studio, Mi-Clos Studio
Outbreak
Release date: 2017. 1月 17. (PC)
Genre: Action, Adventure, Role-playing game, Survival
Developer: Dead Drop Studios
Genre: Action, Adventure, Role-playing game, Survival
Developer: Dead Drop Studios
Outbreak Island
Release date: TBA
Genre: Survival horror, First-person, Sandbox
Developer: Tiny Magicians
Genre: Survival horror, First-person, Sandbox
Developer: Tiny Magicians
Outcast - A New Beginning
Release date: 2024. 3月 15. (PC)
Genre: Action, Adventure, TPS
Developer: Appeal Studios
Genre: Action, Adventure, TPS
Developer: Appeal Studios
Outcast - Second Contact
Release date: 2017. 11月 14. (PC)
Genre: Action, Adventure
Developer: Appeal Studios
Genre: Action, Adventure
Developer: Appeal Studios
Outer Wilds
Release date: 2019. 5月 28. (PC)
Genre: Action, Adventure
Developer: Mobius Digital
Genre: Action, Adventure
Developer: Mobius Digital
Outland
Release date: 2014. 9月 29. (PC)
Genre: Action, Adventure, Platformer
Developer: Housemarque
Genre: Action, Adventure, Platformer
Developer: Housemarque
Outlast
Release date: 2013. 9月 04. (PC)
Genre: Action, Adventure, Survival horror, First-person
Developer: Red Barrels
Genre: Action, Adventure, Survival horror, First-person
Developer: Red Barrels
Outlast 2
Release date: 2017. 4月 25. (PC)
Genre: Action, Adventure, Survival horror
Developer: Red Barrels
Genre: Action, Adventure, Survival horror
Developer: Red Barrels
Outlast 3
Release date: TBA
Genre: Action, Adventure, Survival horror
Developer: Red Barrels
Genre: Action, Adventure, Survival horror
Developer: Red Barrels
Outlaws of the Old West
Release date: 2019. 3月 12. (PC)
Genre: Survival, MMO
Developer: Virtual Basement
Genre: Survival, MMO
Developer: Virtual Basement
Outlive
Release date: 2001. 3月 19. (PC)
Outpost Zero
Release date: 2018. 7月 12. (PC)
Genre: Action, Adventure, Simulation
Developer: Symmetric Games
Genre: Action, Adventure, Simulation
Developer: Symmetric Games
Outpost: Infinity Siege
Release date: 2024. 3月 26. (PC)
Genre: Action, Strategy, FPS, Tower defense
Developer: Team Ranger
Genre: Action, Strategy, FPS, Tower defense
Developer: Team Ranger
Outreach
Release date: TBA
Genre: Adventure
Developer: Pixel Spill
Genre: Adventure
Developer: Pixel Spill
Outriders
Release date: 2021. 4月 01. (PC)
Genre: Action, Adventure, Role-playing game, TPS
Developer: People Can Fly
Genre: Action, Adventure, Role-playing game, TPS
Developer: People Can Fly
Outrun 2006: Coast 2 Coast
Release date: 2006. 6月 27. (PC)
Outward
Release date: 2019. 3月 26. (PC)
Genre: Role-playing game
Developer: Nine Dots Studio
Genre: Role-playing game
Developer: Nine Dots Studio
Over The Hedge The Game
Release date: 2006. 5月 09. (PC)
Overcast - Walden and the Werewolf
Release date: 2014. 4月 18. (PC)
Genre: Action, Adventure
Developer: Microblast Games
Genre: Action, Adventure
Developer: Microblast Games
Overclocked: A History of Violence
Release date: 2008. 4月 01. (PC)
Overcooked
Release date: 2016. 8月 03. (PC)
Genre: Simulation, Casual
Developer: Ghost Town Games
Genre: Simulation, Casual
Developer: Ghost Town Games
Overcooked! 2
Release date: 2018. 8月 07. (PC)
Genre: Simulation, Casual
Developer: Ghost Town Games, Team17
Genre: Simulation, Casual
Developer: Ghost Town Games, Team17
Overcooked! All You Can Eat
Release date: 2021. 3月 23. (PC)
Genre: Simulation, Casual
Developer: Ghost Town Games, Team17
Genre: Simulation, Casual
Developer: Ghost Town Games, Team17
Overfall
Release date: 2016. 3月 01. (PC)
Genre: Role-playing game, Strategy
Developer: Pera Games
Genre: Role-playing game, Strategy
Developer: Pera Games
Overgrowth
Release date: 2016. 10月 16. (PC)
Genre: Action, Sandbox
Developer: Wolfire Games
Genre: Action, Sandbox
Developer: Wolfire Games
Overkill VR
Release date: 2016. 11月 16. (PC)
Genre: Action, Simulation
Developer: Starloop Studios
Genre: Action, Simulation
Developer: Starloop Studios
OVERKILL's The Walking Dead
Release date: 2018. 11月 06. (PC)
Genre: Action, FPS
Developer: Overkill Software
Genre: Action, FPS
Developer: Overkill Software
Overland
Release date: 2019. 9月 19. (PC)
Genre: Strategy, Survival
Developer: Finji
Genre: Strategy, Survival
Developer: Finji
Overlanders
Release date: 2019. 5月 24. (PC)
Genre: Adventure, Strategy, Racing
Developer: Run-Down Games
Genre: Adventure, Strategy, Racing
Developer: Run-Down Games
Overload
Release date: 2018. 5月 31. (PC)
Genre: Action, FPS
Developer: Revival Productions
Genre: Action, FPS
Developer: Revival Productions
Overloop
Release date: 2022. 8月 26. (PC)
Genre: Action, Adventure, Platformer
Developer: George Kobyakov
Genre: Action, Adventure, Platformer
Developer: George Kobyakov
Overlord
Release date: 2007. 6月 26. (PC)
Genre: Action, Role-playing game
Developer: Triumph Studios, Virtual Programming
Genre: Action, Role-playing game
Developer: Triumph Studios, Virtual Programming
Overlord II
Release date: 2009. 6月 23. (PC)
Genre: Role-playing game
Developer: Triumph Studios, Virtual Programming
Genre: Role-playing game
Developer: Triumph Studios, Virtual Programming
Overlord: Fellowship of Evil
Release date: 2015. 10月 20. (PC)
Genre: Action, Adventure
Developer: Codemasters
Genre: Action, Adventure
Developer: Codemasters
OVERPASS
Release date: 2021. 3月 02. (PC)
Genre: Simulation, Sports, Racing
Developer: Zordix Racing
Genre: Simulation, Sports, Racing
Developer: Zordix Racing
Override 2: Super Mech League
Release date: 2020. 12月 22. (PC)
Genre: Action, Fighting
Developer: Modus Studios Brazil
Genre: Action, Fighting
Developer: Modus Studios Brazil
Override: Mech City Brawl
Release date: 2018. 12月 03. (PC)
Genre: Action, Fighting
Developer: The Balance
Genre: Action, Fighting
Developer: The Balance
Overture
Release date: 2015. 1月 01. (PC)
Genre: Action, Adventure, Role-playing game
Developer: Black Shell Games
Genre: Action, Adventure, Role-playing game
Developer: Black Shell Games
Overwatch
Release date: 2016. 5月 24. (PC)
Genre: Action, FPS
Developer: Blizzard Entertainment
Genre: Action, FPS
Developer: Blizzard Entertainment
Overwatch 2
Release date: 2022. 10月 04. (PC)
Genre: Action, FPS
Developer: Blizzard Entertainment
Genre: Action, FPS
Developer: Blizzard Entertainment
OVERWHELM
Release date: 2018. 6月 12. (PC)
Genre: Action, Platformer
Developer: Ruari O'Sullivan
Genre: Action, Platformer
Developer: Ruari O'Sullivan
Owlboy
Release date: 2016. 11月 01. (PC)
Genre: Action, Adventure, Platformer
Developer: D-Pad Studio
Genre: Action, Adventure, Platformer
Developer: D-Pad Studio
Oxenfree
Release date: 2016. 1月 15. (PC)
Genre: Adventure
Developer: Night School Studio
Genre: Adventure
Developer: Night School Studio
OXENFREE II: Lost Signals
Release date: 2023. 7月 12. (PC)
Genre: Adventure, Puzzle
Developer: Night School Studio
Genre: Adventure, Puzzle
Developer: Night School Studio
Oxygen Not Included
Release date: 2017. 5月 18. (PC)
Genre: Simulation
Developer: Klei Entertainment
Genre: Simulation
Developer: Klei Entertainment