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Modrons, Mephits & Mayhem (Free Preview Edition): A Dungeoncrawl Adventure for Levels 4-6
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Modrons, Mephits & Mayhem (Free Preview Edition): A Dungeoncrawl Adventure for Levels 4-6


An adventure for three to five characters of levels 4-6.

Modrons, Mephits & Mayhem is a free preview of the full-length adventure out now! Check out MODRONS, MEPHITS & MAYHEM! - Adventure for Levels 5-8.

The mountaintop facility designated XK-247 was created by the modrons as a place to study the effects of elemental portals on prime material world geography and settlements. Located in a mountain beside the High Moor and overlooking a githzerai monastery on the edge of the Serpent Hills, the bizarre specter of this facility remains a constant source of peculiarities, even though the modrons have long ago abandoned the place.

Seeking to reconcile its rogue modron status and rejoin the hierarchy of Mechanus, the quadrone dubbed Roguelike has led a band of mischievous mephits to the facility to send them through portals back to the Elemental Chaos from which they sprang, surely an act of law that will please Roguelike's former superiors. But one among the mephits has proven to be a traitor aligned with a band of githyanki who even now attempt to turn the facility to their own ends and destroy the peaceful githzerai monks of nearby Margrim Abbey...

This 16 page adventure includes:

  • The introduction to the full-length version of Modrons, Mephits & Mayhem, plus a quick run-down of important NPCs so you don't have to wait for the full version to continue the player's adventures.
  • The entire text of Level 1: The Water Laboratory, featuring intricate mechanical puzzles and arcane technology that only the modrons could devise!
  • 20 highly detailed encounter areas.
  • Several detailed NPCs with their own motives and goals, including Roguelike the modron, several of his cantankerous and mischievous mephit followers, and the long-dormant guardians of modron facility XK-247.
  • Encounters, traps, and roleplaying that reward exploration, interacting with the environment, and tumbling to the dark of the modron's experiments!

If you like this preview, check out the full length version today: Modrons, Mephits & Mayhem! - Adventure for Levels 5-8! Also don't miss the Free Enhancement that provides more challenges, monsters, and additional rules from books published since the adventure was first designed, like Mordenkainen's Tome of Foes, Monsters of the Guild, and more!

Written and designed by Tim Bannock. Interior art by Patrick E. Pullen. Cartography by Dyson Logos and Elven Tower.

If you like what you see here, check out Tim Bannock's other RPGs, supplements, and collaborations!

DMs Guild:


Old School Hacks series:

Old School Hacks Vol. 1: Hexcrawling - Wilderness Exploration and Random Encounters   Old School Hacks Vol. 2: Player Roles

Full-length adventures:

Modrons, Mephits & Mayhem! - Adventure for Levels 5-8   Curse of the Gumdrop Ooze

Campaign tools, handouts, and custom Dungeon Master Screen inserts:

The Hag’s Hexes   Forging the Forgotten Realms: A DM’s Kit for Running the Realms   Calendar of Harptos   Optional Rules & Random Tables Indexes   Curse of Strahd DM's Kit & Screen   Out of the Abyss DM's Kit & Screen

Free adventures and previews:

The Dam Kobolds Expansion! - An expansion for Encounters in the Savage Jungles   Modrons, Mephits & Mayhem (Free Preview Edition)

Tim Bannock is an RPG enthusiast since 1985. He got his start in the RPG industry as a game reviewer, then an editor and playtester working with Inkwell Ideas and several indie publishers. He now designs, writes, and handles project management for releases on the Dungeon Masters Guild and the Cortex Plus Creator Studio through DriveThruRPG.

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Customer avatar
Tim B August 02, 2017 4:42 pm UTC
The full-length version of this adventure has just finished the second round of edits! We're putting together a printer-friendly monster appendix, putting the finishing touches on the maps, and then this sucker goes into layout.
Customer avatar
Tim B August 18, 2017 6:59 pm UTC
UPDATE 8/18/2017 - Full-lenght version is out now!!!
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File Last Updated:
March 22, 2018
This title was added to our catalog on June 29, 2017.