Invasion!

The enemy creeps across our land, isolating our troops! As a train conductor, you too must help with the war effort. You load your train up with troops, generators, civilians, and an array of weapons to fight off the enemy as they attack you on the Rails.

It has an extremely simple interface, quickly and effectively allowing you to control things like Boxcars and the position of your guns. The graphics are surprisingly rich and smooth, and the ingame tutorial and simplistic design work wonders.