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Get the game launcher. It installs the client and keeps it up to date for you.

rocket_launch Windows Game launcher Updated 2026-09-30 ยท 252 KB download Download

How to start

  1. Download OTCv8Launcher.exe.
  2. Put it in an empty folder, for example C:\Games\Uroborous. The launcher installs the game next to itself.
  3. Run it. The first start downloads the full client (about 540 MB); after that it only fetches what changed and updates itself too.
  4. If Windows shows "Windows protected your PC", click More info and then Run anyway.
  5. No account yet? Create one in the game client or here.