@gorgon_morganFebruary 01, 2025
GoG previously had the original PC port of Substance available, but was unlisted for reasons I'm not entirely sure of. The current port for modern systems, the Master Collection, is a minimum effort port of the HD Collection version from 2011 which was based on the Xbox port of Substance. The Xbox port suffered from a laundry list of issues in comparison to the original PS2 release that the HD Collection only added to, and the Master Collection added a deluge of new issues on top of those. The original PC port was also based on the Xbox port and similarly suffered from a host of problems that fans had made efforts to fix.
Honestly, the results were mixed, but even without those fixes it's at least one less layer of porting problems.