Original Mu Soft packs were distributed via eDonkey/eMule. While these P2P networks are largely dead, you can find torrent files on niche trackers like GazelleGames or RetroPirates. Search for "Mu Soft" in the torrent search.
The examined link provided a working .exe self-extracting archive containing 10 16-bit games. Hash matched known good dumps from MobyGames. Running under Windows 3.11 in PCem was successful. mu soft game pack link
To understand the "Mu Soft Game Pack," we must first look at the history of software piracy in the early 2000s. Original Mu Soft packs were distributed via eDonkey/eMule