Really cool concept and great execution on that concept. Game overall just felt good to play, great vibes and wonderful presentation. This is one of those ideas where I feel like, if you kept pursuing it, you could make a really strong full game out of. The random rules that appear have a huge impact on the gameplay and your strategy which I think is genius.
One small note, and maybe this is just me being bad at the game, but I feel like some rules can really kill your run easily with them lasting 20 turns. Maybe 10 or 15 turns would have been more manageable, but that might also run the risk of being too easy. One example of this tho was no rabbits spawning - within 20 turns it seemed to easily lead to the whole map becoming overgrown with grass.
Aside from little balance tweaks like that, I really have no critiques on this. Just a ton of fun to play and very unique.