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The Demonplague
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The Demonplague

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Sandbox Meets Hexcrawl Meets Epic Storyline (Table & VTT Friendly)

Every millennium, a terrible evil trapped in the heart of the Luna Valley awakens to wipe civilization out — and the last awakening happened 1,000 years ago....

This time, if the heroes don't stop the evil, more than just the Luna Valley will die.

Welcome to The Demonplague, a rocking campaign that will take your players on a wild adventure rife with intrigue, secrets, and grim sword and sorcery action.

With equal parts classic adventure, sandbox, hexcrawl, and old-fashioned dungeon crawl, The Demonplague lets you GM with little prep and at the same time offers your players total freedom and choice.

Designed For Game Masters

New GMs benefit from a classic linear structure that gradually leads them into the campaign's other styles.

The Demonplague adventure comes in four parts, all of which you will get today for a complete campaign experience.

  • Part I: The Frozen Necromancer
  • Part II: The Winter Druid's Legacy
  • Part III: Icefall
  • Part IV: Xancrown's Prison


  • A full-length 5E campaign that takes characters from 1st to 20th level
  • The self-contained Luna Valley setting lets you drop this campaign into any fantasy world without a hitch
  • 21 diabolical new monsters for 5E
  • 27 new NPCs with complete write-ups for excellent roleplay
  • A fully-stocked village filled with intrigue
  • Over a dozen dungeon and adventuring sites
  • Two PDF versions included: 2-column for print and 1-column PDF for easier tablet and phone use
  • PDFs are fully bookmarked and searchable

The Story

  • A classic linear adventure core story arc with village intrigue, wilderness exploration, and dungeon mission play
  • A sandbox stage when PCs are tough enough to brave the post-apocalyptic wilderness, letting them choose when and how to engage in story milestones
  • A hexcrawl portion where you can dynamically generate the contents of any hex, letting players roam freely throughout the valley and make amazing discoveries
  • A mega-dungeon finale with an exciting balance of roleplaying and action
  • A player-driven narrative that puts tough choices in front of their characters to determine the direction and outcome of adventures.


The Demonplague campaign comes with a hoard of extras to help you run an amazing campaign.

  1. NPCs Log. A standalone PDF with picture of the NPC and roleplaying and plot overview. Print this out to help you easily run roleplaying encounters with over two dozen plot-related NPCs.
  2. Jelinghi's Gallery of NPCs. Awesome handouts for your players. Every NPC portrait, each on their own full page. Print-friendly black and white. Hand out to players as they meet these important people in your campaign.
  3. Jelinghi's Gallery of Foes. Another PDF with lush, full-page illustrations of all the new monsters created just for The Demonplague. Print them out to show your players.
  4. Side Trek: Sweetwater Village. Extra material for your sandbox Demonplague campaign. A great 18 page PDF adventure that provides new NPCs, monsters, maps and items.
  5. Side Trek: City of Safeharbour. Wiped out by the deluge, survivors eke out a living by exploring the ruins, which hold many dangers and surprises. Ambitious PCs might even want to tackle the undead kraken that now meances the harbour.
  6. Side Trek: Comet Dungeon. The astral object which caused the catastrophe is now a demon-filled dungeon your players can now discover and explore!
  7. Single Column PDF: All four core adventure in one PDF made single column with larger font size for easy phone and tablet reading.
  8. Jelinghi's Library of Maps: A PDF with every map of the campaign for easy printing, drawing on, and reference.
  9. VTT Maps: All our maps come in layered PDFs so you can configure exactly how you want your VTT maps to look. Need a player-safe version with furnishing but no grid? Or a GM version with grid but no room numbers? All elements are on different layers so you can export the exact configuration you need for onscreen use.

 Customers Who Bought this Title also Purchased
Reviews (9)
Discussions (0)
December 3rd, 2018
Disclosure, I never made it past the first module. When running this campaign I felt a bit overwhelmed. Maybe its just because I'm a new DM but there were so many interesting NPCs, subplots, and encounters that I really didn't feel I did justice. If [...]
December 3rd, 2018
I received both the hard and soft covers for this book, and the quality for the print product is excellent. The font is large enough for my aging eyes and the B&W graphics are excellent. Lots of combat maps to play on, plenty of charts to generat [...]
December 3rd, 2018
I just received my hot-of-the-presses copy of The Demonplague. It's awesome! I've been boasting to all of my buddies about how cool it is and showing them how efficient Johnn's character/plot driven campaign planning approach is. It's something [...]
December 3rd, 2018
John and James totally deliver in this amazing hardcover. A timer that advances the plot behind the scenes, in-depth motivations for NPCs and BBGs, awesome artwork and a coherent theme really bring this adventure together. [...]
December 2nd, 2018
I don't know how to rate this, given that I've never rated anything here on DriveThru. The system is odd. Bad to Good on a scale of 1 to 5 . . . The Demonplague is pretty good, so without firm conviction I give it a 5? I'm currently running this for a [...]
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233.94 MB
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File Last Updated:
December 02, 2018
This title was added to our catalog on November 17, 2018.
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