Complete Steam Games Database — Every Title, Every Release
Explore all Steam PC games with full release history. Import your owned collection instantly, bookmark titles for quick access, and get notified when new Cheat Engine .CT tables are uploaded for specific versions or patches.
Operator Unknown
IReCorp gave you access to memory. But whose memory is it — and where is the exit from someone else's dream?
Operator8
An unparalleled alien invasion has overwhelmed the Mining Block Facility on the moon Triton, leaving only death and horror in its wake. You are a mercenary known as Operator8 and you alone have been called in to bring a stop to this fierce attack. Destroy the hive mind at all costs!
Operator: Drones
"Operator: Drones" is a drone arcade/simulator that puts you behind the remote terminal of your equipment. Fly high - hit low.
Operator: Observation
Operator: Observation is a Game based on the "Watch Rooms, and Report Anomalies" Concept of "Observation Duty" but now the Anomalies are way more aggressive and have way more ways to make you lose your Mind. Your Instructor will follow you on the way to becoming a good Operator.
Operação Prato
'Operação Prato' is a game based on one of Brazil's greatest ufological mysteries. Step into the shoes of Mario, the reporter who will risk his own life to expose the entire truth about the events that terrified the residents of the Colares region.
Operencia: The Stolen Sun
Operencia: The Stolen Sun embraces everything you love about classic first-person dungeon-crawlers, enhancing the old-school turn-based RPG experience with modern sensibilities. Guide a team of memorable characters through a world inspired by Central European mythology.
Operius DX
Blast off into Operius DX, a high-speed arcade shooter where you navigate twisting polygonal tunnels, battle waves of enemies, and confront formidable bosses in an endless amount of procedurally-generated levels. How far can you get?
Ophelia
Ophelia is a detective game with survival elements. After a long period of silence, your sister Ophelia unexpectedly contacts you from her remote island. Discover the riddles of the island and your past to unravel the mysteries of your sister and her island.
Ophelia's Chapter
A story-rich, psychological-horror adventure game. Play as an urban witch with psychic abilities and delve into the mysteries of a world inspired by the work of Neil Gaiman and Stephen King.
Ophelia's Paradise
Ophelia’s Paradise is a 2D roguelike with a top-down view where you defend paradise against invading shadows. Collect weapons and unique items to create powerful synergies. Each run offers new combinations, challenges, and ways to save paradise from darkness.
Ophidia
Consume all life as a serpentine demi-god in Ophidia! A decree has been made: all worlds must be purged so life may begin anew. Play as the legendary Norse Ouroboros, sent down from the heavens to cleanse Yggdrasil - the world tree - of all beings.
Ophidian
Ophidian is an arcade puzzle game inspired by a great classic. In Ophidian, players navigate the play area to consume food blocks, while avoiding any obstacles set in the way. Multiple game modes included for players to enjoy.
Opie: The Defender
Be first to conquer Old Kingdom's deserted islands; build your base, search treasures and secrets in its ruins. Research and craft new weapons to help you fight creatures and mysteries of the old kingdom. Defend against viking invaders by building defense towers and recruit mercenary soldiers.
Opioid visions 88
Opioid visions 88 is a first person shooter. The game presents the protagonist's visions of substances that expand consciousness.
OplitisAV
You are a Ferocious Anti-virus Systemic Trucidator (FAST), you are injected in an infected system, and your sole objective is to eradicate all virus life forms.