I'm going to ramble some more about the space game idea I mentioned in my previous post.  If one day I will make it, it needs a perfect design.  I've never written anything about this idea before Randomby, it's only existed inside my own head.

Concept

In Theoretical Space Game (TSG) the players are zooming around the galaxy in their space ship, blowing each other to pieces with pew-pew lasers etc.  Victory will be rewarded with credits, with which you can buy parts for your ship.  Let's assume it has warzone-like teams and game modes, except that it saves your ship between games.
  Question: Where do you upgrade your ship?