Hints: Alien Threat Try to explore the solar system systematically. You can also use the Game Information screen to quickly go to a planetary system. Just click on the name of the system you want to go to. Sometimes your "Back to map", "Game Information" and "Navigation" buttons become unavailable. In order to find the Alien Starbase, you have to go through a stargate. Here you'll find a self-destruction device. Be aware however, that you cannot leave the starbase. So make sure you have found the Alien username and password before you go through the stargate.