Here is the full list of all 30 Sokobalien achievements.
Abduct your first cow
Abduct 10 cows
Abduct your first sheep
Abduct 10 sheep
Abduct your first chicken
Abduct 10 chicken
Abduct your first pig
Abduct 10 pigs
Complete Level 1
Complete level 10
First level with a button
Complete level 20
Complete level 25
Complete level 30
First level with a crate
Complete level 42
Complete level 50
Complete level 51
Complete level 60
Complete level 70
Complete level 75
Complete level 80
Complete level 90
Well done! You've finished the game!
First level with a dynamite stick
Buy your first hat
Buy 10 hats
Buy 20 hats
Buy 30 hats
Buy All the hats