I've put distress beacon, then I haven't seen any UFO, just couple penguins, I've killed them and then there's happened nothing, no new quests etc. What should I do and/or what did I wrong? Should/can I summon UFO iteratively?
Yeah, no more quest so far. Now you need to get the molten core from mothership, for me it was full of penguin like creatures with some heavy weapons.(To defeat the mothership you need to place high stairs in the air to jump and hit the mothership). With the molten core you build a new metalwork station and in that station you can upgrade de star map, is like a computer card. Now you put that computer card in your conckpit and now you can go to tier 2 or B stars section, there you find new worlds with higer level threat and now you can build robots and high tech stuff, even a brain. (I am just eploring this so I Dont know more).