If you are looking for a "free download" of a paid game like IXION:

: You must manage the station's population, power, and resources across multiple sectors while maintaining the hull's integrity.

: Sending out science ships to probe star systems, recover resources, and discover the fate of other missions.

: Unlocking new buildings and upgrades is essential to surviving increasingly harsh environments in deep space. Version 1.0.0.3 Context

: You will not receive official updates, which are crucial for a complex simulation game that received many post-launch balance changes.