: A legal free demo is available through Archive.org if you want to test the game before purchasing. System Requirements (Digital Versions)
: This is widely considered the best version for modern PCs. It comes pre-configured with nGlide (a 3Dfx emulator) and a custom DirectX wrapper, allowing it to run "out of the box" without extra troubleshooting. You can download it at GOG.com . MDK Download PC Game
Downloading and running the classic 1997 action game on a modern PC requires choosing between a few digital platforms, as the original retail CD uses a 16-bit installer that is incompatible with 64-bit Windows. Where to Download MDK : A legal free demo is available through Archive
: If you want true widescreen without stretching, you can use dgVoodoo2 to force modern resolutions and aspect ratios. You can download it at GOG
For the easiest experience on Windows 10 or 11, it is highly recommended to use a digital storefront that has already "pre-patched" the game for modern systems.