If you specifically need a free version, the developer still hosts SpaceEngine Legacy Downloads
The developer, Vladimir Romanyuk (known as "SpaceEngineer"), distributed the software for free for nearly a decade. Version (commonly typed as 9.9.0) was the final major update before the 1.0 release on Steam, which became a paid product. space engine 9.9.0 free download
Would you like a review of the actual SpaceEngine 0.990 (paid on Steam, free legacy available) instead? If you specifically need a free version, the
If you have a modern gaming PC, you should buy the Steam version for VR and volumetric effects. However, if you have a work laptop, a 2015-era desktop, or a Linux machine (via WINE), 9.9.0 is the best choice. If you have a modern gaming PC, you
The official website no longer hosts free links for this specific version or newer ones.