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Night Owl Odysseys - Collapse at the Crystal Caverns

Latest version1.0.0
Minimum Core0.8.2
Compatible Core9
Last updated2 years ago
Created2 years ago
Systems Dnd5e
Project source Project URL
Trapped underground after a cave-in thanks to a violent earthquake, the adventurers must make their way through the mysterious crystal caverns to see daylight again! With the ground shaking and strange crystalline creatures around every corner, can they survive?

Collapse at the Crystal Caverns is a Fifth Edition adventure designed for four to six characters of 5th to 9th level and is optimized for four characters with an average party level (APL) of 7.

This module contains: 

  • 8 journal entries that will guide you through the adventure
  • 4 new creatures to throw at your party
  • 9 scenes for your players to explore as they see fit
  • 3 new items pertinent to their quest
  • A looping theme that can be used for the area of the Crystal Caverns


Collapse at the Crystal Caverns adventure module is available only for supporters of Night Owls Odysseys who are subscribed at the $10 monthly Twilight Tutor tier. Users who have subscribed must link their Patreon account to their account on The Foundry Virtual Tabletop Website.

Installation Steps:

  1. Link your patreon account by clicking the Patreon banner at the bottom of the Edit Profile section of your user profile (also accessible by clicking your name in the upper right corner of this page). After linking, you should see the content show up in a list on the Subscribed Content section of your user profile.
  2. Open Foundry Virtual Tabletop and change to the "Add-on Modules" tab and click "Install Module". The Tempest Trials will appear as an installable option under the Premium Content category.
  3. Click "Install", once installation is complete the module can be activated in any of your available game worlds.


Collapse at the Crystal Caverns CoverCollapse at the Crystal Caverns Promo
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