Im playing your game and it is beeing a nice experience. Finding hidden jewels is always nice, iff iff these arent fully polished. The game runs fast and every basic feature works (mostly) well. Now, I have mainly noticed two problems: 

1. You can expand for free as legitimacy does not exist (yet). Just wanted to note that out incase you havent noticed, though you probably did.

2. The game randomly crashes here and there after passing a turn.

Thats it. Thanks for developing this game.

Uka

Something else: Some tiles dont show the textures after constructing something and moving a worker to elsewhere is sometimes buggy. 

Just a "little" last request:

Could you add a function to change some controls? Including the option to change the you zoom in and out?