I've installed Heroes 3 on no less than 4 different computers with 3 different OS's over the last 17 years, and with the random map generator, the possible gameplay is never exhausted. When the old desktop I used to play Heroes on bit the dust, I got a Windows 10 machine and I was sorry to see that 3DO's ancient DRM on my physical discs and Windows 10 wouldn't get along. Thus, I purchased the GOG version for 10 bucks and hoped for the best. Setup was painless, except for one quirk. The first time I tried to play a random map, the game wouldn't let me because the map couldn't be written to the hard disk. Fortunately, GOG's forums provided a simple solution (just make a new folder titled random_maps in the HOMM3 folder) and now I can play the game until this new machine wears out!