Ireland West Railway was the first route to depict a standard Irish railway line for BVE train simulator. It models the closed section of Sligo to Limerick line which passes through County Mayo. The 35km between Ballindine and Charlestown was depicted with the stations at Claremorris, Kiltimagh, Swinford and Charlestown.

This route was made for BVE4 train simulator. OpenBVE train sim will run the route, however there are no camera viewpoints included and back face viewing is not provided for.

A BVE4 compatible Irish Rail 2700 dmu cab-view is available.

This is the only route and train currently available from graymac for BVE4 users. Further development for BVE4 is suspended indefinitely.

This route is intended for the Mackoy BVE4 simultor though it can be run with OpenBVE