New update!
A few control changes:
-Esc now brings up a menu to exit the game.
-The '/' key is an alternate control to push crates.
We also adjusted the Normal difficulty to give more supplies, and added a few extra hints. In addition, we have uploaded some videos on how to beat the Easy and Normal difficulties to demonstrate effective base-building strategies.
https://www.youtube.com/watch?v=TqczR0irF6c&t=2s (easy)
https://www.youtube.com/watch?v=n5j2NEcQFjk&t=65s (normal)
These can also be seen on the videos page for the game.