Very cool and cute! I like the art-style, the music, and the audio of the little troops and forts. I could not imagine a single person doing this, so I was somewhat relieved to know that you are a team of talent and not just a single person not sleeping for over 48hrs.
The only problem I have is that you can still retreat after all your troops are dead (which is a little funny when you think about it, but doesn't matter too much to me gameplay wise) and one time one of the troops stopped pathfinding and stood in place while all the others went on fighting, softlocking the game and forcing me to restart it (which I guess, in turn, means I get to play the game more).
I think this is a great interpretation of the Jam theme and could definitely see as a fully fledged out title. (Sorry for posting this twice).