Re: Steam no longer supports installing from retail DVD games that use sid files
Posted on 2022-10-31, 23:52
The best solution is to install the game using a supported version of Steam on a supported OS with an Internet connection. For the unsupported OS it's possible the tools sisinstall or simpack v2.1 may work on XP, if not try them on the newer OS. For Orange box HL2 EP2, Portal and TF2 are broken on …