Cut 2 Planks and unlock it in skill tree

Cut 60 Logs and unlock it in skill tree

Cut 42 Logs and unlock it in skill tree

Cut 36 Logs and unlock it in skill tree

Cut 20 Logs and unlock it in skill tree

Build 120x Roof Tile from Mud and unlock it in skill tree

Build 38x Roof Tile from Mud and unlock it in skill tree

Build 250x Mud Block and unlock it in skill tree

Build 25x Mud Block and unlock it in skill tree

Walk 2000 metres and unlock it in skill tree

Walk 1400 metres and unlock it in skill tree

Build 75x Ice Block and unlock it in skill tree