Unraveling the Mysteries of Loop Hero: A Guide to Secret Bosses

Unraveling the Mysteries of Loop Hero: A Guide to Secret Bosses

Loop Hero, developed by Four Quarters, has attracted a large following with its unique mix of roguelike, deckbuilding, and auto-battler gameplay elements. As players progress through the game, they encounter various bosses that challenge their skills and strategies. Apart from the main bosses, Loop Hero also features secret bosses that can be encountered under specific conditions. In this article, we will delve into the world of Loop Hero’s secret bosses, revealing their identities and explaining how to unlock these hidden challenges.

The Secret Bosses of Loop Hero

Loop Hero has two known secret bosses. These elusive adversaries offer an added layer of challenge and excitement for experienced players seeking to test their skills against formidable foes.

The Frog King

The Frog King is a secret boss that can be encountered by fulfilling specific requirements during an expedition. To unlock the battle with the Frog King, follow these steps:

  • Reach at least Loop level 6.
  • Place the maximum number of River and Bridge tiles allowed (10 each).
  • Ensure that no other boss has been spawned.

Once these conditions are met, there’s a chance that the Frog King will spawn on a Bridge tile. The Frog King has powerful attacks and high health, making it essential to prepare your hero with strong equipment and a well-constructed loop to stand a chance against this secret boss.

The Cosmic Mage

The Cosmic Mage is another secret boss in Loop Hero, which can be encountered by following a specific set of steps:

  • Start a new expedition with the Temporal Beacon card in your deck.
  • Place at least two Temporal Beacons on the loop.
  • Place a Vampire Mansion adjacent to a Battlefield, which will spawn a Vampire Mage on the loop.
  • Defeat the Vampire Mage within the Temporal Beacon’s effect area.

Upon defeating the Vampire Mage under these conditions, there’s a chance that the Cosmic Mage will appear as a secret boss. The Cosmic Mage possesses potent attacks and abilities, requiring careful preparation and a well-planned loop to defeat this challenging adversary.

Tips for Defeating Secret Bosses

To increase your chances of success against Loop Hero’s secret bosses, consider the following strategies:

  1. Choose the right class: Loop Hero features three playable classes – Warrior, Rogue, and Necromancer – each with its unique abilities and playstyles. Select the class that best suits your preferred strategy and complements your approach to tackling secret bosses.
  2. Upgrade your camp: Invest in camp upgrades that enhance your hero’s capabilities, such as the Gymnasium, which provides passive bonuses, or the Smithy, which improves starting equipment.
  3. Optimize your loop: Create a balanced loop with a mix of biomes, enemies, and beneficial effects to ensure that your hero is well-prepared for the challenges posed by secret bosses.
  4. Focus on synergies: Build your card deck and loop layout to maximize synergies between cards, making the most of their combined effects to bolster your hero’s performance in battle.


The secret bosses in Loop Hero provide experienced players with thrilling challenges and a chance to test their skills against powerful adversaries. By unlocking the Frog King and Cosmic Mage encounters, players can explore new facets of the game and push their strategies to the limit. With the right class, camp upgrades, loop optimization, and synergies, you can increase your chances of success against these formidable secret bosses and claim victory in the ever-changing world of Loop Hero.