Here is the full list of all 25 Castle of no Escape achievements.
Start the game as a champion
Start the game as a bandit
Start the game as a shamaness
Meet the friendly NPC
Successfully evade an attack
Find and use an orb
Open the first chest
Open the second chest
Try and fail to use a crystal orb
Don't do anything for 10 seconds
Reach the 2nd floor
Reach the 3rd floor
Reach the 4th floor
Reach the 5th floor
Reach the 6th floor
Read the book
Find some gold in the chest
Drink from the pool
Find some gold
Find some flares
Fall in the hole
Visit every space on a floor
Kill every enemy on a floor
Use a flare when you're forgetful or blind
Select a secret character