I do not understand the game

... jokes aside, the game looks really polished! The art is great, I love the mix of 3D and 2D graphics and I was wondering how did you do that.
The gameplay is promising, but the rng left me with full wagons for several loops before finding a city where to sell the goods. Probably with a few more cities and more balanced rng, the game would "feel" better to play.
There are two bugs worth of notice: the first one is that the house sprite where you sell the 3 crystals for the win, shows on top of the train; The other is that if I press rapidly on the cities' buttons I manage to buy/sell more than one time.
Anyway, congrats for your work, I had fun playing it!
- gasper