Terra dei Demoni

the only template where you don’t immediately want to give Inferno to the opponent

Inferno here is certainly stronger than on other templates, but in my opinion it doesn’t quite reach imba status. For example, a Castle-Inferno pair, I think, is playable under any colors.

Added 17 minutes later

forts should be removed from secondary towns, except Inferno, so they don’t get built out

That’s exactly the point — to build out the secondary towns. Need more demons ...

also, a double-ГО for one of the players in the form of a portal isn’t great either; it should be like on Jebus — the exit to the treasure zone is always by land

Here, unlike Jebus, there are too many zones, and the generator can’t create a flat structure.