Please Don't Burn My Village by Simon Weinberg

Set in the world of Castle Panic, a fearsome dragon is threatening to burn all the villages in the Kingdom! Luckily dragons are greedy, so if you can bribe him with treasures from the battlefield like a Barbarian’s Axe or a Phoenix Feather, you might persuade him to spare your village. Unfortunately, all the other villagers have the same idea! Bribe with the right treasure at the right time to keep the dragon’s attention while buying treasures at the Black Market and cursing the other villagers' treasures. When there’s no more treasure left, the dragon will burn all the villages except for one. Will it be yours?