The Rat King

The Rat King is a quest with an eponymous boss. It was released on May 14, 2014. Defeating this boss will unlock the Rat Quest Pet. The quest scroll can be purchased from the Market for 4 gems.

This quest is one of the harder quests to undertake. The boss has enough health (1200 HP) to take a sustained amount of time to defeat for small parties without Mages and Warriors; a party of 4 that only does an average of 10 damage per party member will take a month to complete this quest. Your party would benefit from having a Healer if party members are prone to missing more than a few Dailies, since each missed daily causes more damage to the entire party.

Description
Garbage! Massive piles of unchecked dailies are lying all across Habitica. The problem has become so serious that hordes of rats are now seen everywhere. You notice @Pandah petting one of the beasts lovingly. She explains that rats are gentle creatures that feed on unchecked dailies. The real problem is that the dailies have fallen into the sewer, creating a dangerous pit that must be cleared. As you descend into the sewers, a massive rat, with blood red eyes and mangled yellow teeth, attacks you, defending its horde. Will you cower in fear or face the fabled Rat King?

Objective(s)
Defeat the Rat King.

On Completion
Your final strike saps the gargantuan rat's strength, his eyes fading to a dull grey. The beast splits into many tiny rats, which scurry off in fright. You notice @Pandah standing behind you, looking at the once mighty creature. She explains that the citizens of Habitica have been inspiried by your courage and are quickly completing all their unchecked dailies. She warns you that we must be vigilant, for should we let out down our guard, the Rat King will return. As payment, @Pandah offers you several rat eggs. Noticing your uneasy expression, she smiles, "They make wonderful pets."

Quest Pets and Mounts
The eggs obtained from this quest can be used to raise the rat pets and mounts.

Show/Hide the Quest Pets and Mounts

Spider (and Rat) Squisher Chrome Extension
For those who don't want to see the rats (and spiders) during gameplay, there is a Spider Squisher Chrome extension that makes the rats invisible. The extension will ONLY block rat images on habitrpg.com in the Chrome browser when the extension/setting is active. Rats will still appear on the wiki, Android/IOS app, and social media.