This is an excellent game with all of the expansions that came out for it. It is, however, the original product with some older graphics. You can get a mod [HOMM3 HD] for it from https://sites.google.com/site/heroes3hd/ which enhanced the graphics and lets you run more modern resolutions. Install it to the same place HOMM3:Complete was installed. The HD edition [on steam] does it slightly better, only becasue it increases the size of the sprites [character images, monsters, towns, etc..] However, it is perfectly playable and pretty with the HD mod above. It just looks like you increased the resolution and while the images are clearer and not stretched they are small at 1900x1080 for me. I will tkae that over not being able to play the expansion packs, though, myself. The trick to fixing the mod above for the GOG game launcher is after you run the hd launcher and make heroes3 hd.exe, remane the Heroes3.exe file to heroes3.bak then change the name of Heroes3 HD.exe to Heroes3.exe It will then launch from the GOG game app. You should only need to run the HD launcher one time and configure the settings how you like, you can always run thehd launcher again and then rename the file to Heroes3.exe if you need to do something differnet BTW. The auto saving feature should be paid attention to, I find it annoying to save every turn, too many saves to wade though for me. Goodluck and enjoy. If you mess it up too bd, just go to gog, and uninstall, then reinstall to get back to base install settings. Cheers.