1838TL (1838: The Thuringia Link) is an 18xx game set in central Germany. This game takes the basic mechanics from 1830, and adds several new elements.

Unique features include the absence of private companies and an effectively unlimited amount of money, because the game ends only when a company's share price reaches 516.
The (weird) map is color-coded because companies are only allowed to build in their historical region.

Overview by Chris Lawson:
Location: Central Germany
Corporations: 13
Privates: none
Map Size: 377 hexes (387 total)
Off-Board: Three steps (2 / 3-4 / 5)
Bank: 21520 Thaler
Tile Colours: Yellow / Green / Brown
Stock Market: 2D (Square)