Train Sim World 6 introduces a trifecta of Thames Valley duties, combining three independent branch lines into a single package. It's an expansive route that lets players explore the Windsor, Marlow, and Henley branches, all stemming from the Great Western Main Line.

The Windsor branch offers a short but historically rich journey right up to the shadow of Windsor Castle. Meanwhile, the Marlow branch features a unique operational challenge, requiring drivers to change ends at Bourne End to complete the route. It doesn't take long to master the unique token system used here.

Finally, the Henley branch, known as the Regatta Line, provides a scenic run closely following the River Thames. The DLC includes the versatile BR Class 165 Networker Turbo DMU in GWR green livery, offering true-to-life performance from the driver's seat.