Board Thread:Questions and Answers/@comment-91.23.45.246-20160505181205/@comment-70.62.42.205-20160525043027

Alien metal is found from the Moonhenge artifacts, researched at the Research Lab and also other things like Cubes, Alien Ware. To get more, build a Beacon in one of the 2x2 craters, then use the Summon to summon alien waves. Destroy the Invaders and UFO Attackers to get 15 kg each of Alien Metal. This must be done on your own base, for you to get the metal, I think.