Random Tables PDFs for Dungeons and Fantasy Underground (Updated)

Here we are looking at pdf and book titles for Fantasy Dungeons on Drive Thru RPG.

Disclaimer: Rand Roll is an affiliate for DriveThru RPG and DM's Guild.

Starting Points

Dungeons are where it all started for rpgs with dungeon delving being the focus of early Dungeons and Dragons.

They still form a large part of many games, from ruined dwarven cities to haunted mines, fungi filled caves and sprawling tomb complexes.

Also of interest will be the Random Tools Guide for Dungeons. And just as important is a Guide to Dungeon Map Generators. Finally for more PDF titles try Random Table Titles for Fantasy.

Major Titles

Some PDFs are much larger and comprehensive.

GM's Miscellany: Dungeon Dressing (System Neutral) from Raging Swan Press brings together lists to fill out urban areas from smaller titles. It is part of a category of many Dungeon Dressing titles.
From a series of tomes of random tables from Dicegeeks is The Book of Random Tables: Dungeons. They also have a slightly different ttile with 100 hand-drawn maps in Dungeons for the Master.
For 220+ pages of advice on dungeon building and random tables, Kent David Kelly has Castle Oldskull - The Classic Dungeon Design Guide. It's also system neutral. The Castle Oldskull - Oldskull Dungeon Generator has tables focused on building an old school OSR-style dungeon.
Azukail Games brings together 10+ smaller titles in Dungeon Bundle 1, including room descriptions, doors, corpses and random items.
Dungeon Ambience and Encounter Bundle from Grinning Skull Studios has several 100 item titles along with adventures and sound tracks.
For ideas using letters of the alphabet, Goodman Games has The Dungeon Alphabet with forty four tables to help inspired dungeons.

Free and Pay What You Want Options

If you like pdfs and random tables then there are some options. And where you find one you might find more...

Never Engine has different dungeon encounters with 100 Spooky Yet Mundane Dungeon Encounters.
d100 Dungeon v3 from Martin Knight is a little different, being a solo game where you steer a character through a dungeon.
Loot and Fortune by Matthew Jarmak is an alternate system with random tables for creating D&D 5e Treasures.
Dungeon Cards Core Set #1 is a Pay What You Want set of 24 dungeon tiles from Zadrith.
From Wintertree Software is Business Card Dungeon, a free dungeon with random a map and random tables to detail each room.

Smaller Titles

To find more related titles by a particular publisher the "Customers Who Bought This Title also Purchased" bar at the bottom of product description is useful.

Skirmisher Publishing helps with dragon hoards and dungeon loot with 100 Oddities for a Treasure Hoard.
For building the lore around a dungeon, 100 Dungeon Myths, Legends and Rumours from Azukail Games can help. For populating the dungeon there is also 100 Light Sources to Find in a Dungeon and 100 Water Sources and Features to Find in a Dungeon.
Atelier Clandestin has a Catacomb Generator with several tables for creating corridors, rooms, features, hazards and special rooms.
The Random Dungeon Room Generator is written by Kent Kelly with an old school look. It has a generator and many tables for creating unique dungeon rooms
Black Falcon Games has D-Percent - 100 Dungeon Corpses with descriptions of how they were killed and what loot they still have. It is included in a Bundle, Dungeon Builder - Random Generator Collection.
From Philip Reed Games is D100 Dungeon Hooks, Fantasy RPG Encounter Ideas, with each hook being a couple of paragraphs long.

Solo Titles

Solo gaming for tabletop rpgs has become popular in recent years, and here are titles specifically for solo. There is also a full guide of solo titles.

Ironsworn: Delve from Shawn Tomkin is an expansion for Ironsworn (popular RPG for solo, built for solo). Dungeons and other dangerous adventure locations.
For a different game, try Delve: A Solo Map Drawing Game from Blackwell Games, which puts you in charge of a dwarven hold discovering the horrors that look below.
From Axebane Games is Axebane's Deck of Many Dungeons, a deck of 54 cards, each with a part of a dungeon map and a random table containing treasure, quest ideas or something else.
The Last Fighter#1 - The Tomb of Radus from Doppelganger Publishing is a complete solo game with map, monsters and treasures. They also have a whole category for Dungeons Solo titles.
For an in-depth solo dungeon RPG try D100 Dungeon by Martin Knight, with rules for chargen, combat, quests, downtime and dungeon tables to populate everything.
Four Against Darkness from Ganesha Games is a solitaire dungeon-delving game where you control a party of four adventurers.

Cave and Cavern Titles

Caves and caverns are usually naturally occurring, from movements in the rocks, underground rivers or other erosion. Many other titles are relevant, but these are specific to caves.

Caves are covered with Pink Dice Bag Publishing and the Cave Generator with 16 tables to detail those caverns.
From Paths to Adventure is Perils of the Endless Megadungeon: Series 2: Caverns, set of 24 large geomorphic dungeon maps covering cave complexes.
Just Add Dice: Random Cave Designer from Healing Fireball has tables for creating a natural cave system.
Slightly different is 100 Caves and Shelters to Find in the Wilderness from Azukail Games
Encounters by Environment - Caves by Troy McConnell has detail on caves, maps and d20 5e-based Cave Encounters.

Dungeon Maps

Digital and physical random dungeon map options.

The Dungeon Builder's Deck from AAW Games has 114 double-sided poker-sized cards of dungeon maps.
From Paths to Adventure is Perils of the Endless Megadungeon, Series I: Dungeon Complex, Series I: Dungeon Complex. A set of 24 large geomorphic dungeon maps, ready to use in VTT play. Series 2: Caverns covers cave complexes.
Dungeon Tiles: DM Essentials from Dungeon Channel has 150 digital tiles of various-sizes covering rooms, hallways, doors, effects and more.

Other Titles

Things that don't fit in the other categories.

Inkwell Ideas has Sidequest Decks: Dungeons, Caves, & Ruins Fantasy, 50+ cards with dungeon plots and encounters.
For a deck with basic maps and room summaries the Universal Adventures Dungeon Deck from New Realms Publishing has a deck of 54 cards, with several visible in the previews. There is a sequel of Universal Adventures Dungeon Deck II.
50 Random Dungeon Encounters is a table of fairly short but interesting encounters from Lee's Lists.
For a deck of random dungeons, Doppelgänger Publishing has Amazing Dungeons Cards Set with 24 cards.