This is really nice and has a satisfying gameplay.
This is what I noticed:
- I didn't found a quit menu (had to ALT+F4)
- You can't remove thing you placed. Even without refund, would be nice to be able to still upgrade the ship, otherwise if you get stuck in a certain configuration, it's pointless to earn more money.
-Heal module is a bit op. Maybe set a limit for them, or add a cooldown for beign able to buy it.
- Instead of having 2 L modules, would be nice to have one that you can mirror before placing it.
- You may add a 120 degree angle module
There's plenty of room for improvement. If it had a story and I found it on steam, I would have bought it.
(It'll be easier if you talk each other now :D)