12hrs and I have…
… managed to get my lobby working, and synced two clients. (The price and demand are changing in real time, though you wouldn’t know from the screenshot.)

Next up… a building selector, placement of buildings, switching between players’ power plants, a thermodynamics model (!), and sabotage.
Also sprites, sounds and music. And a context sensitive menu. And help popups. And an AI that can play the game.
Yeah. The likelyhood that I’ll finish this is pretty low. But I’ll keep working and get as far as I can. Hopefully I’ll be able to duplicate the bug I’m looking for.
Looks impressive. I hope you get it finished, even if it’s after the deadline.
Thanks… I’m bowing out of the Mini-LD with this comment. (I just don’t want to stay up all night!) But I’m going to keep working on this.