4578, no idea if that's good or bad. A few suggestions for the game would be simply special cards/buildings, you could make some that increase/decrease the frequency of the fire (like a christian church for the "wrath of the gods"), you get the idea. There could be cards that are bound to eachother (so if one burns the other will burn too), and many other options. Apart that you could put different time categories, so you could choose if you want a long lasting or short game. You could add a leaderboard to each category, incouraging players to try different playstyles. I don't know, I'm just brainstroming. I didn't see any inherent flaws with the game, so I think you should just expand and add content.
Thanks for playing and for the feedback!
That's a great idea with the special buildings, and the bound buildings too! I thought about adding a fountain that prevents or slows down fire in neighboring tiles.
I also thought about adding bless cards which will cause rain that extinguishes fires for some time, and other buffs.
A game length category is definitely something I thought about, but I wasn't sure how that will affect the score. Good thinking with having different score categories.
It's cool btw, all feedback and ideas help shape the game!