đ Gehennom is the fiery, unforgiving underworld that makes up the second half of the game. It is a grueling test of endurance, resistance, and navigation.
Location: Begins immediately below the Underground Castle (which is at level 24â25). Gehennom spans 18â20 levels.
It is the domain of demon lords, powerful undead, and the dreaded Wizard of Yendor.
âšī¸ Characteristics
- Environment: There is no natural light. Fire traps and lava are omnipresent. Fire resistance is practically mandatory for survival.
đŠ Special Levels and Branches
Gehennom is home to numerous unique locations and challenges:
- Valley of the Dead: The very first level of Gehennom, packed with graves, undead, and a temple to Moloch.
- Demon Lairs: You will encounter the domains of several demon lords, including Dis, Maladomini, Jubilex's Realm, Orcus Town, Lair of Tarrasque, and Yeenaghu's Domain.
- Vlad's Tower: Branches upwards from the middle of Gehennom.
- Wizard's Tower: A heavily guarded structure where the Wizard of Yendor waits with the Book of the Dead.
- Fake Wizard's Towers: Two decoy towers, one of which contains the portal to the true Wizard's Tower.
- Plane of the Modron & Hellish Pastures: Unique GnollHack branches accessible via portals in Gehennom.
- The Vibrating Square: A hidden, unremarkable-looking square on the lowest regular level of Gehennom. You must find it to perform the Invocation.
- Moloch's Sanctum: The final level of Gehennom, accessed only after performing the Invocation on the vibrating square.