A free version is available on the official Avorion website and the Steam store page . The demo includes ship building, creative mode, and basic combat.
Version 2.3 was a notable update that introduced significant improvements to the fleet management UI, better communication for trade commands, and various quality-of-life UI changes. Key Game Features Avorion on Steam Avorion Free Download (v2.3)
While "free download" sites often host unauthorized or outdated versions, you can safely access the game and its official demo through these channels: A free version is available on the official