So I had an idea that related to the theme, at the end of Saturday I'd decided it wasn't working, I knew I had other things to do over the weekend and I was getting really demoralized and I figured "Hey I wanna make a tower defense". So I did.
It has nothing to do with the theme. It has very inconsistent/bad/placeholder graphics. It has no audio at all. It has a single enemy and a single tower (hence the name). It's very buggy (creeps find a path when they spawn and never again, so they're liable to run through towers that you built recently). Overall it's just bad :D.

I just wanted to get something in so here it is (I've been wanting to make a proper tower defense for a while I figured I'd use this as a good starting point).

Controls:
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Left click to place a tower (if you have enough money, they cost 50).
Right click on a tower to destroy it.