55		Terraria (Windows, 2011)
53		Astral Terra (Windows, 2015)
53		Solar 2 (Windows, 2011)
53		Masterspace (Windows, 2015)
53		GRAV (Windows, 2015)
52		Sky Break (Windows, 2016)
52		Planet Explorers (Windows, 2016)
52		Planet Centauri (Windows, 2016)
52		Vortex: The Gateway (Windows, 2016)
52		Fragmented (Windows, 2016)
51		Planet Nomads (Windows, 2017)
44		Signs of Life (Windows, 2014)
42		No Man's Sky (Windows, 2016)

Notes: Games similar to Darkout, Games like Darkout, Allgraf Studios, KISS Ltd, Windows, Action, Sci-Fi, Futuristic, Sandbox, Open World, Survival, Side view, PC, Game Similarities.