Electric trains, but UPS-friendly. Provides battery-powered locomotives, reusable battery packs and charging facilities. Balanced for vanilla gameplay by default, but trains can be as fast as you want.
Mods introducing new content into the game.
Louder rolling sounds, especially at lower speeds, for all standard wagons and optionally for modded wagons as well. Use this if you don't like your long trains silently zooming by.
Small changes concerning balance, gameplay, or graphics.