High Pressure Steam Engine is a technology already acquired once you start a game of Imperialism.

Allows Engineers to build railroads into tiles that contain desertfarmforestplain, or tundra.

To build a rail into farms or plains costs $100; to build a rail into forest or tundra costs $150. 

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.