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A basalt altar of Yredelemnul
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A bloodstained altar of Trog
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A burning altar of Makhleb
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A closed door

A wooden door. To open it, try simply walking into it, or press 'O'.
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A corrupted altar of Lugonu
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A deep blue altar of Sif Muna
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A dry fountain
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A fountain of clear blue water

'q'uaff to drink from this fountain. But it's far more pretty than useful, unless you're trying to fetch the Orb without eating, I guess.
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A fountain of blood

'q'uaff to drink from this fountain, if you absolutely wish to.
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A fountain of sparkling water

'q'uaff to drink from this magic fountain. Expect magical effects, as long as it's still magic.
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A gate leading back out of this place
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A gate leading out of Pandemonium
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A gate leading to another region of Pandemonium
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A one-way gate leading to the halls of Pandemonium

Tales about successful loots of these netherworlds are rare. Even the strongest and most experienced characters can die there. On the other hand, these halls contain several runes and lots of valuable items. It is much easier to get in than to get out.
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A gate to the Realm of Zot

Zot is the final stage as its deepest level houses the infamous Orb of Zot. Both the Orb and this Realm have a fearsome and questionable reputation but one piece of information seems to be for certain: the monsters inhabiting this area and protecting the orb are strong and strange -- some of them nowhere encountered but here.
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A gateway to a bazaar

Aside from the vendors who've set up their stores at various places in the dungeon, there are others trying to make a living by traveling from place to place. Bazaars feature a number of different shops and often have better stock than the sedentary ones, sometimes even at a bargain. Once you hear the clinking of coins, be sure to hurry up and find the impromptu marketplace before the caravan moves on!

Also be warned that their nomadic lifestyle has taught these sellers to appropriate any items an adventurer might leave behind, and then leave quickly, probably to sell them elsewhere.
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A gateway leading out of the Abyss

A gateway out of this accursed place, shimmering and shifting in the impermanent landscape.
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A gateway to Gehenna

You can feel the heat. Gehenna seems to be made out of nothing but flames, lava and hellfire.
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A gateway to Hell
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A gateway to the Iron City of Dis

Can you pass the test of iron?
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A gateway to the decaying netherworld of Tartarus

This place seems to radiate negative energy.
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A gateway to the freezing wastes of Cocytus

From the frost-bitten lands, a cold chill touches your soul.
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A glowing drain

Every settlement brings forth the unpleasant sewers and drains, ignored by most but hideaways for others. Old tales speak of dangerous creatures, bathing in disgustingly smelling green water, preying on each other without mercy. The tales also allude to valuable items left by daring and unfortunate visitors, left to grow mildew in the damp caverns.
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A glowing golden altar of the Shining One
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A glowing white marble altar of Zin
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A granite statue
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A labyrinth entrance

A gateway to an intricate maze designed by subtle and malicious minds, its exit guarded by a fearsome monster, where many a hapless adventurer has lost his way and starved to death.
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A magical trap
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A mechanical trap
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A natural trap
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A metal wall

A wall of bluish-grey metal. As every dungeon electrician knows, this stuff will ground.
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A one-way gate to the infinite horrors of the Abyss

A one-way gate to a demon-haunted realm, riven by chaos, its very substance impermanent and whimsical, filled with creatures out of nightmare.
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A rock wall
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A roughly hewn altar of Beogh
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A sand-covered staircase

You can make out a staircase leading downwards into a small tomb. Sand surrounds the staircase and is continuously pouring onto it. Before long the staircase will be gone. They say that some distant relatives of the pharaohs were entombed here.
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A shimmering altar of Xom
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A shining altar of Vehumet
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A shop

A shop in the dungeon, beyond sight of the world above, manned by a secretive and reclusive shopkeeper who cannot be bargained with, grants no refunds, and is interested in nothing you may have to sell. Some shops hawk antiques of unknown provenance, and offer little hint as to the quality or nature of their goods.
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A silver altar of Elyvilon
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A slime covered rock wall

This rock wall is thickly coated with bright green slime. Ewwwwww.
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A sparkling altar of Nemelex Xobeh
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A staircase back to the Crypt
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A staircase back to the Dungeon
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A staircase back to the Lair
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A staircase back to the Mines
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A staircase back to the Vaults
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A staircase to the Crypt
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A staircase to the Ecumenical Temple

An entrance to the Temple of the Gods, a place of peace, and a refuge from the insanity of the dungeon.
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A staircase to the Elven Halls

A wide stair down to the murky depths of the halls of the deep elves, skilled warriors with blades and bows, and fearsome sorcerers and magicians.
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A staircase to the Hall of Blades
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A staircase to the Hive

You hear an angry and manifold drone.
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A staircase to the Lair
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A staircase to the Orcish Mines

An entrance to the mines of the orcs, filled with their gold, but treacherous and easy to get trapped in.
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A staircase to the Shoals

Here be the Shoals: exotic underground beaches, salty spray and creatures that bite, stab and maul.
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A staircase to the Slime Pits

An entrance to the amorphous realm of acids, jellies and slimes. Any trace of intelligent beings has long been dissolved. Still, there are rumours of great treasures deep down, hidden safely away in secret chambers without door or window for acid to leak in.
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A staircase to the Snake Pit

Here is the way to the place of the serpent, the lair of the naga.
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A staircase to the Swamp

A stair to a swampy waste land, complete with ooze, muck, flies and large slavering carnivorous monsters.
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A staircase to the Tomb

A way to the Tomb of the Ancients, a place of damnation, of horrors animated by the vilest necromancy.
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A staircase to the Vaults
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A stone staircase leading down
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A stone staircase leading up
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A stone wall

A harder obstacle than rock walls. Only the mightiest magic can shatter stone walls.
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A translucent rock wall

An unnaturally hard translucent rock wall.
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A translucent stone wall

A harder obstacle than rock walls. Only the mightiest magic can shatter stone walls. It has been imbued with arcane magics which render it translucent.
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A trap
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A wall of green crystal

For some reason, some dungeon walls, like this one, have been made of this polished crystal, imbued with arcane magics. They prevent its destruction, and make it reflect heat and cold.
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A wall of solid wax

These walls are built by bees. Occasionally a dungeon architect will manipulate bees into building wax walls for aesthetic reasons. (Theirs, not the bees'.) They are susceptible to fire and will melt and burn, given sufficient heat.
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A wall of the weird stuff which makes up Pandemonium
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An abandoned shop
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An ancient bone altar of Kikubaaqudgha
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An empty arch of ancient stone
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An escape hatch in the ceiling

A spring-loaded one-way escape hatch set in the ceiling.
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An escape hatch in the floor

A spring-loaded one-way escape hatch set in the dungeon floor, allowing the adventurer beset by adversaries to exchange the perils of this level for the perils of the next.
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An iron altar of Okawaru
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An open door

A wooden door. You can close it by standing next to it and pressing 'C'.
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An orcish idol

An idol of the orc god Beogh.
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An unnaturally hard rock wall

You cannot affect this wall by any means.
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Floor
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Some deep water

This water is as deep as it is dangerous. No sane traveller would try to set foot into it, apart from those who fly or swim. Let it be a warning for you: many confused adventurers found their death at the depths, and an untimely end of levitation drowned even more hopeful trespassers.
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Some lava

An intensely hot pool of molten rock, emitting clouds of sulphurous smoke.
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Some shallow water

This waist-deep, misty water makes movement and combat cumbersome for landlubbers - sometimes dangerous, but never directly fatal.
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