Hello,
Very well done!

Sublime

Congratulations!
I also thought that it was possible to create with a GameGuru "Space Exploration".
It would suffice to design a great space ship, stations that turn on themselves, an acceleration system with the W key and Rampdown with S key. And of course the maps GameGuru key is infinite because maneuver about the publisher current in space is impossible ...
Look what has been created by a French sub UE4 :
It is easy to arrive at a fairly close result with GameGuru missing only the Physically Based Rendering / Shading to do some great things
Of course you could use Thrid Person view and ensure that one can float in space (thus canceling all physics objects and player camera).
In any case you did a great job
!nullptr