Hexploration Decks: The Underrealms

Descend into mysterious depths with the Underrealms Hexploration Deck!
Packed with system‑neutral locations, traits, and subterranean details, this deck helps you quickly generate dynamic underground points of interest for any tabletop RPG. Each card offers evocative ideas—from sprawling cavern cities and perilous lava tubes to bioluminescent fungal groves and ancient ruins—perfect for filling hex or non‑hex maps and inspiring story hooks. Whether your party is exploring twisting cave systems, forging alliances with subterranean civilizations, or facing strange creatures in the dark, these cards keep exploration fresh and full of possibilities. Ideal for worldbuilding, session prep, or improvisation, Underrealms brings your campaign’s underground world to life.

• It has 40 Location cards each with a picture on one side, and a series of options related to a place like that on the other side. Use your own creativity to customize and expand the result to fit your setting. Examples: Cyst of Doom, Plundered Vault, Sacrificial Depths, and The Seer's Shrine.
• Trait cards can modify your locations to make them even more distinctive and interesting. Each side of each of these 10 cards has a theme. For example, you may start with a Blood Shrine but choose the the 'Holy Fountain' or 'Sentient Fungus' concepts to make it different!
• Reference cards provide ideas and more charts! One card describes the basics of the Underrealms, another focuses on exploring it, a third card details a process to generate a new Underrealms species, a 4th has ideas for a species' culture, and the last is two example species.

Note: The PDF is set up to be printed duplex (two-sided), 4 cards per page.  So the upper right card on the front side of each page matches up to the upper left card on the back side. There is also an extra area (1/8") on the edge of each card called a "bleed". It is intended to be cut away. It allows a card to still look good even if the cut isn't perfect or if the front and back prints aren't perfectly aligned.  A PDF is also included with each side of each card as a 3.75"x2.75" page (3.5"x2.5" plus a 1/8" bleed) so you can lay it out as you wish.