Similar to エバープラネット

Off (video game)

Observer (video game)

Operation Flashpoint: Cold War Crisis

Operation Flashpoint: Dragon Rising

Half-Life: Opposing Force

Omoide ni Kawaru Kimi: Memories Off

Omori (video game)

Ori and the Will of the Wisps

Ori and the Blind Forest

The Orange Box

CRSED: F.O.A.D.

Massively multiplayer online role-playing game

Battle of B-R5RB

ArcheAge

Wynncraft