Your game is absolutely beautiful, as for the gameplay I wasn't sure what I was doing/shooting at beyond the little blue sattelite type things. I tried doing some crafting (after I eventually found it) and it didn't seem to do anything? Also as I moved around the laser slowly disappeared until I couldn't see it anymore lol. So there's a few bugs and it could really benefit from a tutorial or at least some instructions on what to do. Good effort though!
Oh and when you're building a UE4 game, if it's not VR turn off the SteamVR plugin, cos it opens SteamVR on peoples systems who have VR headsets and it's annoying lol