This is really great! I love how you only have a few moments to make decisions about what cards to play and in what order. It's really satisfying to discover how to use your cards. For instance, you learn that it's generally better to play horseshoes first, which is pretty simple, but with more cards I can see that little discovery process happening over and over in a way that could be really fun and satisfying.
Having an actual space to navigate between combat is an interesting idea. I think it would be really cool to couple the card game with the navigation somehow. Currently they seem pretty starkly separated such that I'm not sure if the horse navigation is actually adding much to the game, but it would be cool if they somehow tied into each other.
I think you guys should keep up with this one because it's really fun, unique, and interesting. Well done!