Catacombs of damnation

Dungeon info:

1. Floor

4 gates are spawned, you need to unlock them one by one. It’s always random.
You need to destroy a stone to get a key to open the gate
Then you need to activate a monument and kill all monsters in room
After that, boss is spawned, kill it
After the boss is killed, item is dropped and monument can be destroyed.
Repeat this until all gates and monuments are destroyed.
Then, 5 stones are spawned and you need to destroy them within defined time. Otherwise the dungeon will end.

A big stone is spawned, you need to destroy it in 3 phases. Kill all monsters to get 3x unlocking item
After that, 5 stones are spawned. Find the right one to proceed. If you destroy a wrong one, you get a negative points. The negative points depends on how much HP will has a final boss
Final boss is spawned, as i mentoied above, the boss can has very different HP. You have only limited time to kill it.