ORole-playingReleasedOctopath Traveler ↗2018 role-playing video gameWindows / Nintendo Switch / PlayStation 4 / Xbox One / PlayStation 5 / Nintendo Switch 2
OStrategy / Role-playing / Tactical RPG / Real-time strategyReleasedOgre Battle 64: Person of Lordly Caliber ↗Wii U / Virtual Console / Nintendo 64
OPlatformer / Adventure / Action-adventureReleasedOkaeri! Chibi-Robo! Happy Richie Ōsōji! ↗Windows / Nintendo DS