Seems like a very cool game, the ship building mechanics seem tight and the microscopic presentation is neat. Did you take inspiration from Spore?
I made a little bot that can move around in any direction, which took some trial and error since it's not obvious which way the thrusters fire from the sprite. I wandered around the map for a long time, as it took me forever to find out I was supposed to go into the tunnel thing at the center of the map. I found a pink chest but had no clue what to do with it, then I died to enemies since I had no way to defend myself.
Trying again with the same setup, are the maps procgen? This looks different. The same thing happened, I don't understand what I'm supposed to be doing.
I've now discovered you can scroll in the shop, oops. I made a ship with a cannon, which was working until I stopped to pick up some parts. I don't know what I did, but I got permanently stuck without enough energy to use the welder, so I had to restart. It would be nice if you could see how much energy you have numerically instead of just a bar, that way you know if you'll be soft-locking yourself or not if you saw stuff off.
It's really cool that you can deflect projectiles with the cannon. I finally made it to the second stage, got my shit wrecked. Game crashed shortly afterwards with an error message saying "bongbing". Wait, it didn't crash, but I'm stuck in a black void.
This happened again after playing some more.
It's a very brutal game, which I like. It got fun after the initial hurdles induced by a lack of tutorialization. Honestly, one of my favorite demos I've played from the DDs I've participated in. Well done, looking forward to more.