Here is the full list of all 33 Voodoo Garden achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
click skull 10 times
click crocodile 30 times
reach voodoo level 30
collect 2000 dragonflywings
plant 20 trees
collect 666 lizardtails
produce 240 voodoo dolls
produce 10 000 items
sell 7 trees
collect 1234 snailhouses
collect 6666 mushrooms
expand garden 20 times
collect 999 snaketeeth
plant 15 shrubs
own 1 000 000 gold
collect 3333 roots
plant 10 herbs
reach voodoo level 20
sell 5 shrubs
expand garden 10 times
sacrifice 11 animals
own 100 000 gold
erect 7 totems
free 3 spirits
collect 444 beenests
produce 1000 items
sell 3 herbs
reach voodoo level 10
scare 88 bats
own 10 000 gold
collect 69 froglegs
produce 100 items
restart game