Steam announces the release of no fewer than four DLC packs for RailWorks, the transportation simulation (and no more than four, as we are being quite precise here). The DLC includes an Isle of Wight RailWorks Expansion Pack, a Class 158 Diesel Multiple Unit Add-on, a Class 66 Diesel Locomotive, and a Class 08 Diesel Shunter. The four DLC packs represent a $79.96 additional investment in the $49.99 game.