Here is the full list of all 19 Anubis Challenge achievements.
Played 30 minutes
Played 1 hour
Played 2 hours
Played 4 hours
Destroyed the first chain
Destroyed the second chain
Destroyed the third chain
Killed 20 monsters
Killed 60 monsters
Killed 120 monsters
Killed 360 monsters
Destroyed 20 amphores
Destroyed 40 amphores
Destroyed 80 amphores
Killed 15 bugs
Killed 50 bugs
Killed 150 bugs
Killed 300 bugs
Freed Anubis