In Scar in the Void you are a robot designed to complete one task: save humanity from another artificial intelligence known as I.I.I. The game has two modes: a story mode where you attempt to save the solar system and its inhabitants from I.I.I's expansion, and a waves mode where you fight increasingly large waves of I.I.I drones.

Has both spaceship dogfighting and on foot combat, with three ship classes to choose from as well as three on foot robot loadouts. There is also stealth as you can attempt to hide from and sneak past enemies. Has an open solar system which you can explore, and space pirates to fight as well as I.I.I drones. Events can also happen such as a transport sending a distress signal as it is attacked by pirates.

You can also play the waves mode where you can fight waves of I.I.I drones on multiple locations in the in game map, as you play through the story mode you unlock more locations to fight enemies in waves mode.