 | Oceanhorn 2: Knights of the Lost Realm | Cornfox & Bros. | 5/10 |  |
 | Oceanhorn: Monster of Uncharted Seas | Cornfox & Bros. | 7/10 |  |
 | Oceanhorn: Monster of Uncharted Seas (Second Opinion) | Cornfox & Bros. | 6/10 |  |
 | Oceanhorn: Monster of Uncharted Seas | Cornfox & Bros. | 5/10 |  |
 | Oceanhorn: Monster of Uncharted Seas | Cornfox & Bros. | 7/10 |  |
 | Oceanhorn: Monster of Uncharted Seas | Cornfox & Bros. | 6/10 |  |
 | Odium to the Core | QubicGames | 5/10 |  |
 | Offworld Trading Company | Stardock Entertainment | 7/10 |  |
  | Ogre Battle 64: Person of Lordly Caliber | Square Enix | 8/10 |  |
 | Oh...Sir!! The Insult Simulator | Vile Monarch | 7/10 |  |
 | Omen of Sorrow | EastAsiaSoft Limited | 5/10 |  |
 | Operencia: The Stolen Sun | Zen | 7/10 |  |
 | Order of the Thorne: The King’s Challenge | Infamous Quests | 4/10 |  |
 | Ori and the Blind Forest | Microsoft Game Studios | 9/10 |  |
 | Ori and the Blind Forest: Definitive Edition | Xbox Game | 9/10 |  |
 | Ori and the Will of the Wisps | Xbox Game Studios | 9/10 |  |
 | Ori and the Will of the Wisps | Xbox Game | 9/10 |  |
 | Othello | Arc System Works | 6/10 |  |
 | Othercide | Focus Home | 6/10 |  |
 | Out of Ammo | Zen | 2/10 |  |
 | Out of Order | Hungry Software | 8/10 |  |
 | Out There: Omega Edition | Mi-Clos Studio | 5/10 |  |
 | Outbreak: The New Nightmare | Dead Drop Studios LLC | 2/10 |  |
 | Outlast: Bundle of Terror | Red Barrels | 7/10 |  |