A remade version of the game was released, titled Alien Shooter: Reloaded which featured the addition of a few new levels, simplified role-playing system and several minor changes. This version was originally created in order to make the game more suitable for shareware distribution (with the size of only 400 Mb). The shareware release is no longer available, and a newer digital distribution version is now available which is even further compressed down to a 258 Mb download. Reloaded has less music, no co-op campaign and the multiplayer is also gone. In place it adds new game mode, Gun Stand, where you fight against waves of enemies using a stationary Sentry which can be upgraded as you progress, there are also additional levels in the main game, however, the levels are all smaller than in Alien Shooter 2.
And also there's a mobile mode with different game mechanics and graphics.
