This guide is now located at http://learn.re-volt.io/playing-the-game/online.
There are two main options for joining these and other races.
Many races are being announced on the Discord server in the #racing channel. If someone announced a race, copy their IP (CTRL C) and start up the game.
If the host didn't post any IP, you can always ask for it.
Then select Start Race and Multi-Player. Select Join Game. You will be prompted for the Host Computer. Now paste the IP addres (CTRL V) and press enter.
You will then join the lobby.
Note: RV House is prone to crashing fairly often. It's often easier to visit our Discord server and ask for the host's IP.
C:\Users\TomAtoe\RVGL). Confirm by clicking on OK.
You will then be able to join any rooms hosted in RV house. Click the refresh button from time to time to see if there are new rooms available.