Complete Steam Games Database — Every Title, Every Release
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OOLO
OOLO is a modern take on the classic isometric adventure. Embark on a non-linear journey across mysterious forests, haunted catacombs, and magical factories. Solve puzzles to collect keys and discover upgrades that change the way you explore this lush fantasy world.
OOPS! Simulator
Oops! Simulator is an absurd slice-of-life game about trying to get home. Ordinary actions lead to unpredictable accidents, strange events, and hilarious outcomes in a world that refuses to stay normal.
OOTY : Silence Remains
Four friends travel to a remote, abandoned palace hidden deep in the misty hills, searching for thrills. What starts as an adventure turns into a nightmare when darkness falls. Play as one of them, alone and hunted, and uncover the hill’s secrets to survive the night.
OOZEscape
Jump through obstacles as Ooze in this challenging 2D platformer where you can push your skills to the limit.
OP. After-Mass N1
A game project developed by one man, featuring up to 4k resolution of textures, five unique styles contain in one map. Powered by advanced global illumination and Ray-Tracing enabled to simulate real world visual quality. If you interested you can even join me with this project, bring fun to others.
OPA: Super Janken
A reimagining of the classic Rock-Paper-Scissors to make it more competitive and engaging. Collect the cards and boost your score by facing increasingly stronger opponents.
OPEC IDLE
Become an oil magnate in a few days! Without investing real money, you'll get real pleasure from the profits! From pipette of oil to sales of trains to the Kingdom of Esvatini!
OPEN DOOR
A scientific experiment in which no one survives, in a first-person survival horror game made by one developer In the role of a random person who is trapped in an experiment, try to get out and find out what is happening in this abandoned place.
OPEN FOR BUSINESS
Build your own game & movie store — from retro VHS tapes to modern consoles. Fill your shelves with games, movies, and collectibles, attract customers, and grow your business into the ultimate entertainment shop — all while reliving the nostalgia of iconic eras.
OPEN UP SIR!
Co-op for 2–4 players about firefighters: you take on funny and dangerous calls — rescue, extinguish, and break things.
OPEN YOUR EYES
Fix your gaze on this grid-based puzzle game as you progress through levels by opening every eye. Discover eyes of different styles and properties and earn top ranks by focusing your vision and clearing stages with the least possible moves.
OPERATION SERPENS
Arcade Shooter | Single user campaign | Co-op multiplayer mode | Fast paced action game
OPERATION TEMPLE
You have to take on the role of a mercenary going on a dangerous mission, you are sent to an abandoned city to restore magical totems and destroy enemy invaders.
OPERATIVES: Revolve
A roguelike deckbuilder with cards you can almost touch. Every card is both cover and weapon, discarded the moment it is used. In your hand, they block bullets, blades and death itself. Discover a unique deckbuilder built on deep, interacting mechanics.
OPERATOR
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 the tactical advantage, Good luck.