Revenge - Raid 10 goblin camps and leave no survivors.
Tough As Stone - Lead a army against a goblin camp and destroy it without any injuries to you.
Harvest Of The Century - Harvest 500 of each plant
@Teleros, well, why don’t you make some achievements as well, to see what you would like in a achivement. Achievements motivate the players to want to achieve and make stuff. Also, most Steam games have achievements, so why not? They also allow you to get bragging rights if you get a lot of achievements or if you have a really hard achievement.