Enjoyed my time with this, some balance work would probably help, the stone throwers felt like they had infinite range, I spent my time running around gathering resources to build more. On wave 15 enemies just stopped spawning completely, I think I could have gone forever with my army of stone throwers, but it was enjoyable to watch them melt everything everywhere. Wasn't sure if this was an intentional stop but took it as if I had beaten it.
Something with the UI was that it was a bit much to need to scan every edge of the screen, bottom to see what I was selecting, top to see what I had, right to see tower details. I think the UI could use some streamlining so that you can see some of those things together. This is an option to have things in 1 place, would minimize looking all around the screen to get all the info you need, just my thought.
The Ui does its job already, but this is just a fun thing to keep in mind for UI.
Overall it was enjoyable and there is a good chunk here for a jam game, great work yall!