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