Very cool take on the theme. Playing it solo is definitely challenging but once you get used to it, super fun. I am a sucker for TD games, so I always appreciate them in jams and this is a an innovated use of that genre. Took me a bit to get the R-Shift "heal" option working and that should be a bug or just Windows being wonky.
Overall this is am impressive game. Not overly difficult, but still I had a great time playing it. Well done!