Here is the full list of all 21 Madness Chambers achievements.
Passed level 1
Passed level 2
Passed level 3
Passed level 4
Passed level 5
Passed level 6
Passed level 7
Passed level 8
Passed level 9
Passed level 10
Passed level 11
Passed level 12
Passed level 13
Passed level 14
Passed level 15
Passed level 16
Passed level 17
Passed level 18
Passed level 19
Passed level 20
Finished the game