This game is one big piece of nostalgia. It was one of the first games I bought when i was young. It was the best gaming experience then. Right now this game is rather outdated to the 2017 standards; but still it is fun to play.

The game can launch 2 versions
1 - Normal Version: This one doesn't run on Windows 10
2 - HD version: This version works on Windows 10 but is buggy as hell and even the music is different from the original game.

How to fix this?
Buy the game and download it. Run it once and then go to: http://www.kamremake.com/en/download/
Download the FULL INSTALLER and run it.
The installer will automatically detect the Steam install and installs the remake.

When this is done you need to add the remake to your game list: https://support.steampowered.com/kb_article.php?ref=2219-YDJV-5557

Downside of this is your playtime isn't registered.

Now you can play the true, real, awesome, including multyplayer Knights and Merchants.
Without the KAM Remake the steam game is useless.