You must provide your own legitimate game files (specifically the .mpq files from a PC installation) to run the game. Installation Guide
(Manual)
For the , also copy hellfire.mpq , hfmonk.mpq , hfmusic.mpq , and hfvoice.mpq to the same folder. Diablo 2: Current Status and Methods
For long flights, train commutes, or preservationists who want their 20-year-old save files, the Portmaster version is the only logical choice.
Fully supported and polished on PortMaster. It features native controller support and high performance.