Windbound achievements

Visit 100 islands.

Kill one of each land creature using only the knife.

Have 7 spears in your inventory.

Finish the game using only melee weapons.

Finish the game only using the knife, grass sling, rocks, stick spear, stick bow and stick arrows.

Kill one of each land creature using only headshots.

Collect 1,000 grass

Collect 1000 rocks.

Finish the game without killing any pigs.