BUT:
The game is in my opinion not be played without real money !!!
In the beginning everything is great but after a while everything takes forever!
If you only play with the energy that is free then I can do in the morning about 15 minutes. and in the evening again 15 min. more is not in it! Of course you can power with real money fill !!!
For this, the one comes into this game, by far the least for its real money gets because new spaceships you can not just buy, you can buy only packages where perhaps a new spaceship in there.
That is, if you're lucky (which I had never!) Can new spaceships for 2-3 € get but if you're unlucky you can get for 20 € only crap !!!
Everybody can try it once but if one has grabbed the addiction is expensive !!!!'s