Let's come up with an amphibian race!

Message from Andrey
Are you all so conservative that you don't want to add an Underwater World?! It's boring...

No, guys, an underwater world and battles underwater are just a product of imagination from other games. The heroes already have enough dungeons; I think it would just look out of place to add a new level (underwater). But it would be better to create something like a swamp prototype from the third game. Why invent something new?