Here is the full list of all 18 Force of Nature achievements.
Beat the game
Grow 500 roses
Grow 1500 wheats
Grow 100 sunflowers
Kill 1000 goblins
Eat 100 coconuts or bananas
Cut down 1000 trees or bushes
Die 10 times
Run 42km
Destroy 100 rocks
Get Force of Nature shard
Sleep 10 times
Kill 15 goblins
Die first time
Get level 2
Kill 20 rabbits
Beat the game in Hardcore mode
Kill 2500 enemies