Eternal Essence – Faster AI turn + smarter AI.

Plus, in Heroes of Might and Magic 5.5, a lot is done through Lua scripts. I would say a significant portion.

The experience level threshold is still in the executable file.
Has anyone tried contacting quantomas? Is he still involved?

The AI really needs to be reworked. And this mod is a hope for at least some improvement. It's quite important for single-player gamers.

I've noticed that the AI wastes a lot of time near portals, sometimes jumping back and forth and seemingly thinking about something.