HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

If the folder name includes the date and time the game started, old save files will definitely never be overwritten by new ones (players will just have to clean up the clutter themselves). For example, if Player 1 and Player 2 started a game on September 7th at 7:05:38 PM, the folder name will include the text "20150907190538". When resuming a previously started and saved game, the corresponding folder will need to be specified.