The Hero's Path

Thank you for your feedback, I will answer what I can.

1) Is it possible to persuade a demon-elementalist to join the guild without knowledge of summoning magic and other special skills for learning spells? I only managed to get 8 spells, I can't get the 9th!

You can find Raise Dead elsewhere, or you can find a wand with a high-level spell.

2) I know that if you give everything to the Empire (mines/ashas), they will unlock angels for you. Does this also work with elves?

Yes, dragons will appear for the elves.

3) Can you use a catapult to reach the Easter eggs?

No, the catapult is strictly for practical purposes.

4) What and why did the thieves steal from the elves? What does this lead to? What benefits does handing the thieves over to the mayor give you? I received the same amount of money, but lost the thieves' lair, what's the advantage?

The story is silent about this. Preventing the theft is a condition for obtaining the achievement for the elves; otherwise, there is no benefit. I wanted to make more differences, but I didn't have time.

5) What do the titans/mages give you, who appear on the map with dialogues? The druid and the demon gave something, but here there is nothing, or do the answers to something influence the game?

Just Easter eggs for entertainment, to diversify walking around the map.

I couldn't find the warrior's grave under the sulfur mine of the orcs.

For all other mines, it is nearby; for this one, there is nothing special, but you can find it in distant places, for example, in a cave near the domain of the dwarf princess.

Also, for some reason, the quest with the mines is not completed, even if they are repaired. And in general, I don't understand why repair them for 7 (or 8) thousand, if they only increase the price by 5 when you hand them over...

If there are no bugs, the quest should be completed when all 4 mines are either restored or sold. You can repair them to assign workers to them and earn income from them (more or less profitable if you capture the mines early); this is not necessary when selling them.

I was very surprised by the portal after the labyrinth that leads directly to Binome (T4 location).

Well, firstly, you can summon a ship there and sail away. And secondly, this is a rather exotic situation because the guards of the labyrinth are stronger than the creatures that stand in the way to Binome.

I absolutely don't understand the motivation of the gnome who cheated us with the ship.

This seasoned pirate tricked you. He is one of those who does not know the concept of honor.

But where are the dialogues with the Main Villains?

I decided so; what kind of dialogues can there be with villains? Will they utter pompous villainous speeches, and you will utter pompous heroic speeches? I did this in the quest to kill the dragon, as it was part of your prank. There was a dialogue with Blackfang if you approach her peacefully, and there was a dialogue with the pirate (added in one of the patches at the request of the public). The rest of the villains are purely silent evil.