You can still find DVD-ROM copies of the original RailWorks 3 on secondary markets like eBay.
While is no longer available as a standalone "free download," it has evolved into the current Train Simulator Classic . If you previously owned RailWorks 3 or any earlier version on Steam, your game has likely been automatically updated to the latest version of Train Simulator Classic for free. Ways to Access the Game Today Railworks 3 Train Simulator 2012 Free Download
For those using older hardware or original discs, these were the recommended specs: Windows 7 / Vista / XP Processor: 3.0 GHz Quad Core or equivalent Memory: 4 GB RAM You can still find DVD-ROM copies of the
1024 MB DirectX 9.0c compatible (GeForce GTX 560 Ti or better) Railworks 3 Train Simulator 2012 Free Download