Here is the full list of all 52 Monster Farm achievements.
Get Super Skeleton to your farm
Get Bonus Time IV upgrade
Get Skeleton III to your farm
Get Bonus Time III upgrade
Get Bones IV upgrade
Get Meet I upgrade
Get Bones III upgrade
Get Mushrooms IV upgrade
Get Mushrooms III upgrade
Get Beer III upgrade
Get Beer IV upgrade
Get Brains IV upgrade
Get Skeleton II to your farm
Get Skeleton I to your farm
Get access to Zone V
Get Ogre III to your farm
Get Box IV upgrade
Get Ogre II to your farm
Get Ogre I to your farm
Get access to Zone IV
Get Goblin III to your farm
Get Bonus Time II upgrade
Get Bones II upgrade
Get Brains III upgrade
Get Box III upgrade
Get Bones I upgrade
Get Goblin II to your farm
Get Bonus Time I upgrade
Get Mushrooms II upgrade
Get Beer II upgrade
Get Brains II upgrade
Get Goblin I to your farm
Get access to Zone III
Get Box II upgrade
Get Orc III to your farm
Get Orc II to your farm
Get Beer I upgrade
Get Mushrooms I upgrade
Get Brains I upgrade
Get access to Zone II
Get Orc I to your farm
Get Box I upgrade
Get Zombie III to your farm
Get Zombie II to your farm
Get Zombie I to your farm