The one who pulls out the sword will be crowned king
Linux, macOS, Windows
The Oni Sellsword
Windows
The Oni Taiji - Mezase! 2-Daime Momotarou
PlayStation
The Oort Cloud 2020
The Ooze
Sega Mega Drive
Sega Technical Institute, Sonic Team
The Operational Art of War I: 1939–1955
The Operational Art of War III
The Operational Art of War II: Modern Battles 1956–2000
The Operational Art of War IV
The Operative: No One Lives Forever
macOS, Windows, PlayStation 2
Monolith Productions
The Oracle Land
The OrangeRice
macOS, Windows
The Orb of Darkness
The Orca's III - Sektra Run
The Orca's IV - Consequences
The Orca's IV - Vfidê Chapter
The Orca's IV - War Regence
The Orchard of Stray Sheep
macOS, Linux, Windows
The Order: 1886
PlayStation 4
Ready at Dawn
The Order of the Snake Scale
Linux, Windows
The Order of the Thorne - The King's Challenge
Infamous Quests
The Oregon Trail
Apple II
Minnesota Educational Computing Consortium
Nintendo DS, iOS
Gameloft
Nintendo DS, Wii
SVG Distribution
Nintendo Switch, Windows, iOS, and 1 more
Apple II series, Atari 8-bit family, Commodore 64, and 2 more
The Oregon Trail 3rd Edition
The Oregon Trail 4th Edition
macOS
The Oregon Trail 5th Edition
The Oregon Trail: American Settler
iOS
