Easter egg (feature)

Term
* Easter egg is a term that is used by developers for an inside joke, hidden message, or secret feature.

Hidden Content
* Hazelmere's signet ring, a ring with a currently unknown function * Mod Dolan's rubber duck, rare drop from Legendary Pet Fertilizer ability * Mod Daze's homework, rare drop from Legendary Pet Fertilizer ability * Mod Deg trading sequence, trading items obtained from updates developed by Mod Deg with NPCs from those same updates