: Unofficial versions rarely support stable online co-op. If you are having a specific error, let me know: What is the exact error message ? Does it crash to desktop or just fail to open?
If prompted for a , check the site where you found the link (common passwords include 123 or the website's URL). 2. Verify Contents Open the extracted folder. You should see: Synthetik2.exe (The main game launcher). Synthetik2_Data (Folder containing game assets). SYNTHETIK.2.U7.rar
Do you have that might have deleted a file automatically? : Unofficial versions rarely support stable online co-op
Disable your in Windows Defender briefly. Black Screen SYNTHETIK.2.U7.rar
: Before opening, upload the .rar file to VirusTotal.com .