Full list of all 20 Castle of no Escape (Windows) achievements worth 3,000 gamerscore.
The base game contains 10 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 10 achievements worth 2,000 Gamerscore.
Try and fail to use a crystal orb
Find and use an orb
Start the game as a shamaness
Start the game as a bandit
Successfully evade an attack
Meet the friendly NPC
Open the second chest
Don't do anything for 10 seconds
Open the first chest
Start the game as a champion
Find some gold in the chest
Drink from the pool
Find some flares
Read the book
Find some gold
Reach the 5th floor
Reach the 6th floor
Reach the 4th floor
Reach the 3rd floor
Reach the 2nd floor