The game updates on an irregular release cycle[1] and is available in many Linux distribution's package repositories.

[2][3] The game is developed as free and open source software under the GNU GPL-3.0-or-later.

It also features AI for playing with computer teams, a scripting language for versatile gameplay or tutorials and an integrated map editor.

[4] The game was ported cross-platform (Linux distributions, BSD Unix, GNU Hurd, Apple Mac OS, Microsoft Windows, etc.)

and included in several major free operating system distributions such as Debian[5] and Ubuntu.