Railcraft adds a wide variety of items, from world generated blocks and cosmetic building materials, to advanced routing systems. This six-part video series by Dr_prof_Luigi goes over the entire mod. Separated into six parts, they provide an extensive guide to the entirety of the mod.

Part 1 - Materials and Blocks

Part 2 - Machines

Part 3 - Trains

Part 4 - Rails

Part 5 - Routing

Part 6 - Detectors Loaders and Unloaders