
That’s it, it should work now if you and the other person are both connected to the same server in RAdmin and can ping each other.

Set a desired username at the UserName row

(This will create a new save file once after you launch the game, so to use your old save file copy it from previously used user at Documents\My Games\Tiny Tina’s Wonderlands\Saved\SaveGames into the newly created user folder) Set AccountID to something between 100-1000, remove the # at the start of this line. Open steam config file located at \Tiny Tinas Wonderlands\Engine\Binaries\ThirdParty\Steamworks\steamv154\win64 Got co-op to work with RAdmin VPN, solution taken from a comment on Reddit.
