The easiest way to beat this game is to eliminate all expenses except for enough military to ward off monster attack, and then each turn either invest everything or sell everything depending whether the market has a positive or negative return. Do take care to end each turn with expenses + 1K to avoid going broke. Finished with zero buildings, zero citizens, and over 10,000K.

That is certainly one way to play! Working on a big update at the moment that will change things up for the better and make the dynamics a lot more interesting. Thank you for playing!