Little Trains

Inspired by the old PC game “Shortline”.
You're controlling the railroad between some (up to 6) towns. Your goal is to route trains to the destination towns and to earn some money.
You can build tracks and route trains to their destinations. The train itself is out of your control. You can only build tracks, change signals and switches.

Features: common and special trains.
Common trains. The color of the balloon above the train matches the color of the destination town.
Special trains: rainbow train, secret train, election campaign train.

We want to make "Little trains" better, so any comments are welcome. Thank you!
Enjoy the game!