List of video games
OpenSpades
Dec 31, 2016
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★ 5.0
OpenSpades is a clone of Ace of Spades 0.75, which is a free online first-person shooter created by Ben Aksoy, featuring fully destructible terrain and plenty of game modes (including …
PC (Microsoft Windows)
Operation Dimera
Aug 8, 2025
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★ 1.0
Operation Dimera is a co-op game for up to 3 players where you and your friends must save the world. Tackle diverse missions. Work together to solve puzzles that stand …
PC (Microsoft Windows)
Operation Remode
Jul 28, 2025
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★ 2.0
Welcome to WI Corp, Moddie Operator! Proceed through various levels inside WI Corp's headquarters while defending it from a perilous threat to its secrets using M.O.D.D.I.E, an high tech modular …
PC (Microsoft Windows)
Operation Spacehog
Sep 23, 2001
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No ratings
A horizontal shooter where aliens have begun an invasion on Earth, and you as a spaceship pilot, must fend them off with a wide array of upgradeable weapons.
PC (Microsoft Windows)
Operation: Black Mesa
TBA
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No ratings
Experience the Half-Life expansion packs like never before. Operation: Black Mesa features reimaginings of both Half-Life: Opposing Force and Half-Life: Blue Shift through two unique campaigns. How will you survive …
PC (Microsoft Windows)
Operator
Aug 1, 2023
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No ratings
In Operator, you will play as an elite "Tier 1" operator undergoing dangerous clandestine operations all over the globe. With a strategic, measured, and unforgiving style of gameplay. You are …
PC (Microsoft Windows)
Oracle of Tao
Jan 10, 2010
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No ratings
In Earth's distant future, most of its religions known today decline or change. As a result of this spiritual upheaval, the barrier between the spiritual world and the physical one …
PC (Microsoft Windows)
Orake 2D MMORPG
Aug 23, 2016
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No ratings
Orake is a new 2D MMORPG, In Orake you can party up with your friends or make a clan. You can play capture the flag, engage in clan fights, boss …
PC (Microsoft Windows)
Orbatak
Dec 31, 1994
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No ratings
Orbatak is a time-based game where the player controls spheres using a track ball to fight other spheres
Arcade
Orc and Hypnotized Femdogs
Ore no Kanojo ga Gachi Hentai Sugiru
Ore o Hoshigaru Futari no Haha
Orphans
Apr 18, 2025
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No ratings
Orphans is an adventure, stealth, and puzzle game. Join Victoria in this dark journey through a dystopian city where the most savage instincts stalk in every corner. She must rely …
Orpheus's Dream
Sep 15, 2019
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No ratings
Orpheus’s Dream is an 3D isometric-inspired puzzle game with storytelling elements. Explore an amnesiac’s family house and recover lost memories of him and his cat.
PC (Microsoft Windows)
Oscillatron: Alien Frequency
Apr 16, 2018
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No ratings
Oscillatron: Alien Frequency - music arcade in space! You have to control the spaceship and destroy the alien troops, and music will be your weapon!
PC (Microsoft Windows)
Osmorrow
Dec 27, 2017
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No ratings
An adventure set on the planet of Osmorrow, where the Ogre clan has run rampant. Your mission is to help restore peace and order to this world as you liberate …
Linux
PC (Microsoft Windows)
Othello
1984
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No ratings
Othello is an arcade game adaptation of the board game of the same name, by Success Corp. It was released in 1984.
Arcade
Nintendo Switch
PlayStation 4
Othello Let's Go
Aug 20, 2020
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No ratings
Othello Let's Go is a beautifully designed strategy board game for all ages. A total of 8 levels of computer AI difficulty, suits for both beginners and experts! More than …
Mac
PC (Microsoft Windows)
Oto Puri: Koiseyo! Otome Oujisama Dokidoki Wedding Bell
Dec 19, 2008
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No ratings
A pornographic visual novel featuring a cross-dressing protagonist.
PC (Microsoft Windows)
Otome ga Irodoru Koi no Essence: Egao de Orinasu Mirai
Nov 25, 2016
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No ratings
PC (Microsoft Windows)