Games similar to Really Big Sky include Enter the Gungeon. It's paid, but Utilizer Deluxe is free. Other options are Geometry Wars. In total there are three Action Games like Really Big Sky for Mac, Windows, Android, iPhone and iPad.
Enter the Gungeon is a bullet hell dungeon crawler following a band of misfits seeking to shoot, loot, dodge roll and table-flip their way to personal absolution by reaching the legendary Gungeon’s ultimate treasure: the gun that can kill the past.
Geometry Wars is a series of multidirectional shooter video games.
The player controls a small, highly maneuverable ship that can move and fire independently in any direction. The objective of the game is to score points by destroying a variety of shapes and surviving by not tou.
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Utilizer Deluxe is a mobile arcade space shooter mixed with a match 3 genre! Utilize fancy space monsters, fight with dangerous bosses, make color blocks combinations, upgrade your spaceship, complete all sectors and test your skills in the survival mode!
