Here is the full list of all 20 The Awakening of Mummies achievements.
Escaping from the Pyramid
Escaping from all the chambers from Floor 01
Escaping from all the chambers from Floor 02
Escaping from all the chambers from Floor 03
Falling into the a hole for the first time
Being spiked for the first time
Stuck in the mud for the first time
Taking the crown for the first time
Finish a chamber with the magic mist without picking up the crown
Reach the second floor and rescue the second mummy
Reach the second floor and rescue the third mummy
Dropping two mummies into a hole at the same time
Spiking two Mummies at the same time
Dropping three mummies into a hole at the same time
Spiking three Mummies at the same time
Trying to leave the Chamber with the wrong Staff
Two Mummies trying to leave the Chamber with the wrong Staff
Three Mummies trying to leave the Chamber with the wrong Staff
Break fifty floors opening fifty holes
Replay a Chamber 5 times