Similar to 終のステラ

Elminage

Angels Online

Tom Clancy's EndWar

Empire Earth (video game)

Enlisted (video game)

The Awesome Adventures of Captain Spirit

Orbiter (simulator)

OpenTTD

Otometeki Koi Kakumei Love Revo!!

Oni (video game)

Operation Flashpoint: Cold War Crisis

Operation Flashpoint: Dragon Rising

Half-Life: Opposing Force

Omoide ni Kawaru Kimi: Memories Off

Ori and the Blind Forest