The Binding of Isaac Wiki

Loki is a boss found in the Depths, and also appeared in Necropolis of the Wrath of the Lamb DLC.


His main attack has three steps. He makes poses whilst attacking. First, he shoots 4 projectiles in a plus shaped pattern, followed by 4 shots in an X shaped pattern, and finishing with another 4 shots in a plus-shape pattern. His other attack shoots 8 projectiles in a circle around him.

He also randomly teleport himself during the fight.

He is sometimes assisted by a single Poky. At times, he may summon Boom Flies to accompany him, which can damage him upon exploding.

Champion Variant


Eternal Loki

Eternal Loki uses all his bullet-related attacks 3 times in a rapid session, while summoning normal Babies and Angelic Babies (though they look like their Eternal variants). He also can heal himself for 10% of his max HP every time Isaac takes damage.

This variant is added in the Eternal Edition update for the Wrath of the Lamb DLC but exclusive to Hard Mode.


  • It is rare to find him as a boss. He is, however, very common in Sheol (encountered in pairs) and sometimes can be encountered in The Womb. He can be encountered in triplicate in The Chest.


  • Loki is also referred as the "Baby Demon" and "Fetus Demon" in the artbook.
  • During development, Loki's codename was "Mr.Cool".[1]
  • It was confirmed by Edmund on Formspring that Loki indeed possesses two pairs of arms.[citation needed]
  • In Norse mythology, Loki is the god of mischief and chaos.
  • He has the Mark (666) on his forehead.



Standard Bosses Dukeofflies fullThe Duke of FliesGemini fullGemini260x185-400px-Monstro.svgMonstroLarryjr fullLarry Jr.FistulaFistulaGurdy fullGurdyPeep FullPeepChubChubLoki fullLokiScolex fullScolexBlastocyst fullBlastocystTheFallen FullThe Fallen

Wrath of the Lamb DLC: 260x200-400px-Widow3WidowPin cleanPinMask of InfamyMask of InfamyGurdjrGurdy Jr.VS DaddyLonglegsDaddy Long Legs

Posthumous Bosses 285x230-MonstroII fullMonstro II

Wrath of the Lamb DLC: The HuskThe Husk260x220-The Hollow2The Hollow250x200-Teratoma.TeratomaLokii cutoutLokiiBlighted ovumBlighted OvumCarrionqueenThe Carrion QueenThe WretchedThe WretchedBc BloatThe Bloat

Alternate Bosses 287x265-Steven FullsizeStevenChub fullC.H.A.D.Gish fullGish

Wrath of the Lamb DLC: 200x300-400px-Triachnid boss portraitTriachnid

Harbingers 220x287-Isaac Vs famine edited- noobletkFamineBC PestilencePestilenceBC WarWarVSDeathDeath230x200-Headless HorsemanHeadless Horseman

Wrath of the Lamb DLC: BC ConquestConquest

Final Bosses 250x250-400px-MomMomMoms Heart FullMom's Heart250x250-ITLIVEScutoutIt LivesSatan FullSatan

Wrath of the Lamb DLC: Bc isaacIsaacBC xxx???