Deep Rock Galactic is a first-person co-op shooter developed by Danish-based Ghost Ship Games. The game began its journey in early access for two years before releasing officially in 2020. While it can be played single-player, the experience supports 1-4 cooperative play with friends. You shoot your way through procedurally generated levels amongst planetary cave systems. While there's a main objective to follow, there are a handful of side objectives to complete along the way.