6 months ago, (since "Kino") I explored all the paths back and forth... in general, the situation is roughly like this now.
Right now, there aren't many people playing on the maps, although I log in every day because I've returned to Heroes after a year and a half break.
Regarding the map:
1. The monsters needed to progress are located below Reichhaven; there are 4000 of them, and their numbers don't increase.
2. It's a good idea to place the Earth God with the Legion statue in any Castle; the statue will provide a +50% weekly growth rate.
3. Start gathering Golden Dragons for your army; there will be additional outposts for Green Dragons, resulting in a growth rate of 9 per week, while the monsters and Hydras only have a growth rate of 5.
4. Of course, there will be a final battle. If you're short on troops, I suggest looking for a Necromancer with the "Spellcasting" specialization in the tavern, give him an army, and have him quickly learn Expert Spellcasting in battles. Equip him with the King of the Undead cloak and raise Liches on neutral creatures (Griffins, Gremlins, and whatever else you find). Since the armies are now 1000+, free Liches that you can get a couple of thousand of per battle can take up space in the main army.
It's really annoying that there's only one hero with a town portal and a book. You sometimes need to teleport to cities to pick up the necessary artifact/give it to the right hero, and then teleport back.
The map has mixed reviews, mainly because of these secrets that aren't easy to find.
In general, I recommend playing the Ragnar 3: The Lost Empire map later.
Here it is.
I just started playing it (inspired by the Empire with Maximus), and so far, it's just as good