Run 8 Train Simulator runs on MAC with VM Ware/Windows Vista/XP/Win7 32/64 bit/ and Windows 8 operating systems. And 700 meg of hard drive space is needed.
These are the minimum computer specs we recommend:
CPU: AMD Athlon 64 X2 Dual Core 5600+ 2.80 GHz RAM: 3 Gb RAM (run8 will only use around 2 max due to DotNet memory management stuff.) Video Card: GeForce GT440 1Gb VRAM