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Development Hell

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Location of Development Hell

A new way of showing the credits, Development Hell is a rarely spawned level that can appear on Nightmare difficulty or above, and features a group of zombies with the names of the Diablo III game developers.

"Development Hell" is a pun on Development hell, an abnormally long period of development for computer games or other various forms of electronic media.


Development Hell is found in the Cemetery of the Forsaken in Act I of Diablo III, as one of the defiled crypts.


This crypt features a variety of zombies: Ravenous Dead, Retching Cadavers, Hungry Corpses. All monsters have the names and jobs of the game developing group. Two unique monsters are present in this dungeon: Jay Wilson and Josh Mosqueira.


Killing Jay Wilson grants a hidden achievement: "Smash, Jay, Smash", placed in "Feat of Strength" group on the achievement page, plus a sigil of a horned demon.

Special Zones
Diablo II
Pandemonium Event ZonesMatron's DenForgotten SandsFurnace of PainÜber Tristram
Easter Egg ZonesSecret Cow Level
Diablo III
Easter Egg ZonesWhimsyshire (Whimsydale) • Development HellNot The Cow Level

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