PM-1 Inverse Universe is a top-down 2D action game in science fiction genre. The player's role is to assist the allied alien race in liberating our solar system. The player collects experience points and material points, which he gains by destroying enemy units and asteroids in the solar system, and subsequently upgrades the spaceship and uses special weapons. By combining his abilities and the options offered, the player moves further in the game. Levels are designed and processed according to a story that is written and narrated between