To start playing on Prometheus sign up on the website, download the client directly from the “Download” section of the website and open the program wow.exe, the client is already provided with realmlist, custom patches and addons, the (mini) client (only Cataclysm realm) instead is really small and offers you to play right away and the content will be downloaded while you’re playing .

You can still use any other wow client as long as it is the correct version (3.3.5a build 12340 for Wrath of the Lich King and 4.3.4 build 15595 for Cataclysm) and modify the realmlist that you found on the main folder of the game, for example: C:\WorldOfWarcraft\Data\enUS\ opening it with notepad, deleting its contents and adding “Set Realmlist” without coma.

Once you’ve opened the file Wow.exe or Wow 64.exe (depending on your pc architecture) just use ACCOUNT NAME and PASSWORD you created in the registration to log in.