!! Warning all the combinations of items are spoiled you can use them if you get stuck !!
water+dirt=clay
clay +dirt=rock
rock+dirt=wood
fire+wood=torch
water+rock=metal
wood+metal=axe
water+clay= human
human +axe=sheep
human+sheep=wool
human+wool=scientist
human+rock=gunpowder
gunpowder+metal=gun
gun+human=blood
scientist+blood=potion
potion+sheep=sheep man
potion +fish ash=Unknown chemical
sheep man +potion =egg
torch+metal= molten metal
egg+fire=fish
fish+fire=ash
egg+molten metal=metal container
metal container+Unknown chemical=Nuke
Nuke+human=The End(Which doesn't work because i forgot to add the recipe)