Talk to the frog merchant near the tutorial's exit

Equip a Magic Scroll

Equip a pet

Reach Appleton

Use a rudimentary magic wand

Place down a crafting table

Equip an armor piece

Smelt an iron ore using a furnace

Craft a pickaxe using a crafting table

Craft a sword using a crafting table

Collect paint drops to increase your paint level

Enter a mineshaft

Place down a furnace

Defeat the Witch

Save the old prisoner

Save little Terrence

Craft a gold armor using a crafting table

Place down a wooden turret

Salvage the Crystal Core

Bring back the Moon Belt

Finish Bartholomew's quest