The content of the basic game can be modified and expanded from scratch using any number of so-called mods. However, this number was never reached the largest servers have so far managed to cope with up to 400 players simultaneously. The fixed upper limit for players who can play simultaneously on one server is 65,535. Unless otherwise specified, all players share the researched technologies on a server and can also exchange construction plans.

In multiplayer mode, players can build a factory together both locally and over the Internet.

The game is “won” by shooting a rocket into space, whereby the player can continue the game indefinitely and expand the factory. However, there is also the option that the aliens only attack when the player attacks first. Various handguns, missiles, turrets, tanks and railway guns are available to the player for defense. The alien planet is colonized by aliens who attack the player and his factories and evolve as a result of increased environmental pollution. The complexity increases constantly, for example complex oil refineries and production facilities are required towards the end of the game. The aim of the game is to produce science packages that can be used to research new technologies and advance automation. The materials produced are used to manufacture assembly lines, gripper arms and assembly machines. First of all, copper and iron ore are needed and processed in stone furnaces, but also coal must be procured to fire these ovens and later for the power supply. At the beginning the player has to search for raw materials himself on the undeveloped planet and mine them. The player is stranded on a strange planet as a result of an accident. The game is kept in simple isometric graphics.

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