It's also the second level (after Level 1) where there is no quest related to the level.
Strangely, the monsters of Level 11 are much easier to fight than those of Level 10, but in groups they are still powerful.
The following monsters can be found in Level 11:
- Blood claws (a version of Winged Demon)
- Lava Lord (a version of Magma Demon, which drops fire balls and when at small distance makes player(s) fast hit so player(s) cant move, so player(s) should be careful).