I did laugh at the title, but despite your claims, I feel like there's something cool here. I like the idea of a TD game where it's (a) stepwise and (b) you can make adjustments to placement per turn. It's almost less like a TD game and more a tactics game. Unfinished as it is, there's still something here and I hope you'll work on it more. (Also do you have an itch or only a github.io?)

As others have said, the concept is interesting. Don't get yourself down, gamejams are hard and don't always work out.

It's a simple game that I've spent more time on than I'm willing to admit. I would only add the option to zoom out. Very nice game!

I liked the idea and overall aesthetics of the game. I can understand that a jam can be energy draining though and make you start doubting your work in the process. Hope you are back on the next one with something you are satisfied with more. Still a solid entry for a weekend! :)