Always a fan of a neat RTS game, I think the main improvement I’d like to see aside from expanding the game, is the controls. Menus without options are just a place for a player to get stuck, and I think this game could benefit from a more traditional RTS control scheme, where you have a key per action, e.g. E to explore/harvest, F for factory, H for house, M for mine, P for power plant. you could instead use more grouped keys, but this would make the game easier to play.
Also, I wasn’t sure what the win condition was, I filled the entire surface with a decent mix of buildings so then could not do anything, and just waited for ticks to go by to see if something would happen. Keeping the win condition a mystery can be fun, but in a case like this I just don’t know what to do, and seemingly can’t progress, so may be worth adding some guidance! Great concept, hope to see it developed more after the jam!