| Game | Cheats List | |||
| Organ Trail: Director's Cut | Hints | |||
| Ori and the Blind Forest: Definitive Edition | Hints | |||
| Original War | Trainer, Savegame, Walkthrough | |||
| Orion Burger | UHS Module | |||
| Orion: Dino Beatdown | Trainer | |||
| Osmos | Hints | |||
| Ostrich Runner | Trainers, Savegame | |||
| Ottifanten: Ostfriesen Lemminge in Not | Savegame | |||
| Otto Matic | Trainer | |||
| Ougon Musou Kyoku | Trainer, Hints | |||
| Our Darkper Purpose | Trainers | |||
| Outbound | Cheat Codes | |||
| Outbreak | Cheat Codes, Trainers | |||
| Outbreakers | Level Codes, Trainer | |||
| Outcast | Cheats | |||
| Outcome | Trainer | |||
| Outcry | Walkthrough | |||
| Outdoor Life Sportsman's Challenge | Cheat Codes | |||
| Outer Ridge | Cheat Codes | |||
| Outforce | Cheat Codes | |||
| Outland | Hints | |||
| Outlast | Trainers, Savegame | |||
| Outlaw Chopper | Trainer | |||
| Outlaw Golf | Cheat Codes, Savegame | |||
| Outlaws | Cheats, Editor, Bad Guy Creator | |||
| Outliner | Trainer | |||
| Outlive | Savegame, Trainer, Cheat Codes | |||
| Out of This World | Cheat Codes, UHS Module | |||
| Outpost | Cheat Codes | |||
| Outpost 2 | Cheats | |||
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