Keyboard – Orwell: Keeping an Eye On You

One Lonely Outpost

Indie , Simulation

Onimusha: Warlords

Action

Operencia: The Stolen Sun

Action , Exploration , Indie , Roleplaying

Opus Magnum

Indie , Simulation , Puzzle

Orcs Must Die! 3

Action , Exploration , Indie , Strategy

Orcs Must Die! Deathtrap

Action , Indie , Strategy

Free-to-Play , Strategy , Simulation

Exploration , Indie , Simulation

Othercide

Indie , Strategy

Outbound

Exploration , Indie , Simulation

Outcast - A New Beginning

Action

Outland

Action , Exploration , Indie , Arcade , Platforming

Outlast 2

Action , Exploration , Indie

OUTRIDERS

Action , Exploration , Roleplaying

Out There: Oceans of Time

Exploration , Indie , Roleplaying , Strategy