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