How quests work: Certain NPCs you encounter in the mine offer quest chains. Completing their tasks grants permanent bonus items that function like Bonus tab upgrades but are never available for purchase.
Name Effect
Adopt a pet dog Adopts a pet dog. He will excitedly follow you around, and point you towards the rarest minerals or gems near you. You can pet the dog, too!
Diamond Vacuum Cleaner Range: 160 tiles - reaches deep into the fire layer on the standard map. Attached directly to the stockpile. Carry it with you to suck up coal, minerals and gems straight into the stockpile.
Gold Vacuum Cleaner Range: 110 tiles - reaches the end of the ice layer on the standard map. Attached directly to the stockpile. Carry it with you to suck up coal, minerals and gems straight into the stockpile.
Iron Vacuum Cleaner Range: 30 tiles - reaches almost the end of the clay layer on the standard map. Attached directly to the stockpile. Carry it with you to suck up coal, minerals and gems straight into the stockpile.
Silver Vacuum Cleaner Range: 65 tiles - reaches the end of the stone level on a standard map. Attached directly to the stockpile. Carry it with you to suck up coal, minerals and gems straight into the stockpile.
Steel Poise Player no longer receives knockback from nearby bombs.
Sturdy Bombs Bombs no longer receives knockback from other nearby bombs.
Unlock Compass Displays the direction and distance to the stockpile.