Reminds me of Stop the Darkness, that's a good game.
Suggestion: Add food as a second resource for the game? Like Wheat farm, Rice fields, Forager hut, Windmills?
And special tiles like marshlands, beaches and Dragon's Nest ( To collect Dragon egg)?
Special Buildings like, Crocodile farm, Fungus Crocodile Farm, Coconut farm, Fungus Coconut farm, Fishing Village, Seaside City and etc?