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

Thus, HD will remain an interface mod, but it will serve as a base for any game modifications (connectable/disconnectable).

The same principle was used for creating WOG – it is a software platform on which you can implement the gameplay you want.

As a demonstration of the capabilities of the WOG platform, a WOG gameplay was created. These are two different things. This is illustrated by the development of TE/WoG, which are based on the same WOG platform, but contain almost nothing from the WOG gameplay. By the way, as far as I remember, the Chaos patch for SoD was also made on the WOG platform.

If there is a desire to create a similar software platform, I recommend that you inquire about the structure of the WOG platform, just to avoid repeating known mistakes.