Here is the full list of all 11 Knights and Dungeons achievements.
Ascend 5 times!
Ascend 1 time!
Reach level 30!
Reach level 20!
Carry 1000 Gold!
Reach level 10!
Use a skill!
Reach level 5!
Carry 100 Gold!
Defeat the Hoodman!
Start a new game!