For a smooth experience, reviewers from Fly Away Simulation suggest hardware above the minimum specs:
The game is notorious for its massive library of downloadable content (DLC) on Steam : railworks-3-train-simulator-2012
: Introduced a new graphics engine featuring multiple-source dynamic lighting, soft shadows, and a "depth of field" effect. For a smooth experience, reviewers from Fly Away
: New features like superelevation (curved track banking), particle effects on windows (rain/snow), and working windshield wipers. For a smooth experience