Drive along this famous railroad under the shadow of the Allegheny Mountains and try your driving skills on the tight turns and steep gradients of the famous Pennsylvanian Horseshoe Curve! The Horseshoe Curve Expansion Pack has been designed to maximize the graphical and operational advances which have been made in Train Simulator 2012, and includes new EMD GP7 and F7 locomotives plus unlock-able scenarios which allow you to work your way up as an engineer on the Pennsylvania Railroad.