Theorem
Windows
The Organ Trail
macOS, PlayStation 4, iOS, and 3 more
The Men Who Wear Many Hats
THE ORIGIN: Blind Maid
PlayStation 4, Windows
The Orion Conspiracy
Disk Operating System, Windows
Divide By Zero
The Orphan A Tale of An Errant Ghost - Hidden Object Game
The Orphan Dreams
The Orphaned Soul
macOS, Windows
The ORPHEUS Ruse
Linux, macOS, Windows
Choice of Games
The Orville - Interactive Fan Experience
THEORY
Theory of Fear
Theory of Poltaran
Theo's World
The Other 99
The Other: Airi's Adventure
The Other Half
The_Otherside
macOS, iOS
Barbacube, Quantum Giant
The Other Side Of The Screen
The Otoko-tachi no Kijū Hōza
PlayStation 2
The Otome Chronicle Story
TheoTown
Android, iOS, Linux, and 2 more
The Otterman Empire
Xbox One, Windows, Nintendo Switch
The Ottifants
Sega Game Gear, Sega Master System, Sega Mega Drive
The Ouroboros King
Linux, Windows
The Outbound Ghost
Conradical Games
The Outbound Ghost: Reborn
Windows, Nintendo Switch, PlayStation 4, and 1 more
The Outbreak
The Outbreak Story
The Outcast Lovers
The Outer Rim: Survivor
