Here is the full list of all 31 Adventurer Farmer: Save my son! achievements.
Reached the stage 1
Reached the stage 2
Reached the stage 3
Reached the stage 4
Reached the stage 5
Reached the stage 6
Reached the stage 7
Reached the stage 8
Reached the stage 9
Reached the stage 10
Reached the stage 11
Reached the stage 12
Reached the stage 13
Reached the stage 14
Reached the stage 15
Reached the stage 16
Reached the stage 17
Reached the stage 18
Reached the stage 19
Reached the stage 20
Reached the stage 21
Reached the stage 22
Reached the stage 23
Reached the stage 24
Reached the stage 25
Reached the stage 26
Reached the stage 27
Reached the stage 28
Reached the stage 29
Reached the stage 30
You found and saved my son! Thank you!