I was fortunate that I bought Steam product key from Amazon, though unfortunately it only works in the United States. Worked fine on Windows 11, however, you may need to download fan-made GFWL DLL files to run the game without running Game for Windows Live, otherwise you can't get past the menu screen which prompts you to press Enter. Other than that, it lacks custom resolution support, no 21:9 aspect ratio, etc.

All in all, it's great to play classic MK 1-3 in HD graphics which I used to play MK II way back in SNES era. Also, it works fine with Xbox 360, Xbox One Controller, etc.