I played this all the way to completion - even though I'd didn't really know what I was doing.
Very addictive deck-builder gameplay but really hampered by not understanding what was going on - particularly with the various numbers around the screen. I had no clue what they were for. Tooltips for those would be a big improvement.
It would be nice if you could hold on to the cards that you don't play - particularly for the engineering / assembly ones. There appeared to be bugs along the way - in particular I succeeded to get to the moon even though I only had 2 engineer cards in the bay of values 1+2+2 = total 5 but the screen tool tip says 8 required.
Something similar happened for the earlier 2 objective - it popped up the success window before I reached the required engineering value.
It kept me entertained for ages though - much longer than the other entries I have played so far.