Avorion is described as 'Procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy' and is a exploration game in the games category. There are more than 10 games similar to Avorion for a variety of platforms, including Windows, Linux, Steam, Mac and Android Tablet apps. The best Avorion alternative is Everspace. It's not free, so if you're looking for a free alternative, you could try StarMade or Space Agency. Other Avorion like games are Space Engineers, ScrumbleShip, Space Agency 2138 and Shores of Hazeron.