Food Chain is a nature game where Platypus shows how energy passes from the sun to plants and animals. Every living thing is a friendly picture card, and an arrow means "is food for": drag from the food to the one who eats it, or tap the two cards. In the meadow you link grass to a rabbit or acorns to a squirrel; at the pond there are three cards to choose from; in the ocean you build whole chains starting from the sun; on the savanna you find the missing link; and in the forest you sort plant eaters, meat eaters and animals that eat both, then join up a food web with the worms and mushrooms that make new soil. A wrong arrow just wobbles, and a friendly voice says why ("Owls eat animals!"), so children who can't read yet can play. Every habitat wins a new arrow colour. It suits ages four to ten. Our tip: every chain starts with the sun, then a plant.