This was a very neat concept with very stylish execution and fun writing! With a bit more content and cleaning up it would be quite addictive. It's extra impressive that you accomplished all this in only 23 hours!
Some bugs I noticed:
- The prices for the more expensive monsters are more than the stated price? The 40g skeleton actually cost 50g and the Magic Mike cost 150 instead of the stated 120.
- If you rent a dungeon, change your mind and go back, and then rent another dungeon, you are never refunded the cost of the first dungeon. This was mainly a problem for the last map, as I tried to rent it a few times and the map never came up, but it deducted money for each click on the "rent" button.
- Selecting another monster after having selected a different one doesn't toggle the first one's button.
Also, it was a bit frustrating to rent and place skeletons only to find out that adjacency to the adventurer isn't enough - seems like it has to be the one that the adventurer is actively trying to move onto the space of? Similarly, hiring Magic Mike and then finding out that he *only* shoots fireballs to the left ever and so my placement of him was useless was not a great feeling. This probably could be solved by something like a tooltip that tells you how the unit behaves when you hover over the "hire" button.
Overall, though, I'm so, so impressed that you made something this nice-looking and fun despite the glitches in half the time of the game jam! I hope you polish it up more, because I would happily while away several hours playing a mobile game based off this concept :)