A lot of critics say the game takes too long to play ( in some cases yes, but worth it 1000x). So, As a super awesome 4 x strategy game, we should have a short( in relative terms) MINIGAME YAY
Easy, a tower defense game, you set up defense, get metal over time or when you pass a round or kill a ship, you unlock, you build more and you get rolled by the last 10 million core bomber cpa
goal, stay alive( or protect the command station)
that way, you can have a quick fun game of Super awesome mode of tower defense
just like the ai terminal thingy
OR
we can have a 2 world game, yup, just 2 worlds, one worm hole, one core command station.
It will be short and fun, but of course, the main game is always the best.