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Ex Umbra

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Ex Umbra is a playable dungeon-generator to construct fictional underground caves, labyrinths and tombs. This physical print-and-play game can be played alone or with up to 3 friends. Playtime ranges from 1 to 4 hours. 

Meet with your friends and collaboratively draw the map of your dungeon as you collect questionable rumors about its threats and treasures. 

Ex Umbra is a generator that is fun to play and creates maps that are useful for further creative use. For example in narrative endeavors or as preparation for pen and paper role-playing games.

Example dungeon map

Playing Ex Umbra

You (and up to three friends) sit around a campfire, in a rowdy tavern or right outside the dungeon entrance. You’re huddled over a parchment, telling the stories and rumors you heard of this dangerous underground lair. Together you will try to reconstruct it from the unreliable information available to you.

In Ex Umbra you will play Dungeon Cards and make sense of how they relate to the dangerous forces of the dungeon. Together you will draw the collaborative map of the dungeon and see it slowly take shape. In the end you will have built an interesting fictional place with its unique threats and rewards.

Play Overview

This is the sequence of phases and turns that make up a game of Ex Umbra:

Play begins with a brief discussion phase. This provides space for all players to share their assumptions and expectations. 

Next is the planning phase. Here you will determine the dungeon’s Size and Difficulty and the dangers that lurk within.

Followed by the foundation phase. You start putting marks to paper and shaping the dungeon, its entrance and heart. This will generate an interesting starting situation for the rest of the game.

After this you move into the heart of the game: The discovery phase

This contains a number of exploration turns based on the dungeon’s Size. In each of these the active player plays Dungeon Cards, makes sense of the results and draws the architecture of the dungeon. You will gain and spend tokens to reveal and detail Threats and Rewards. 

Halfway through discovery you take two special turns: In the tremor turn you’ll discover a large-scale change to the dungeon. Then you’ll move into the heart turn. It is similar to the exploration turns but collaborative and focused on the dungeon’s heart. Afterwards you’ll finish the remainder of your exploration turns.

The final phase is the cleanup phase. Here you’ll tie off loose ends and add your finishing touches.

Other Sharkbomb Games

If you are curious, here are some other Sharkbomb projects you might be interested in:

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Goblin Errands

Goblin Errands is a no-prep RPG for 2 to 5 goblins and one Tall Person. Together you'll go on comical (mis)adventures trying to complete seemingly mundane tasks as you struggle with a world not designed for you.

A cover image with a drawing of a dungeon on dark purple and the EX UMBRA logo in white on red on top of it.

Ex Umbra

Ex Umbra is a playable dungeon-generator to construct fictional underground caves, labyrinths and tombs. This physical print-and-play game can be played alone or with up to 3 friends. Playtime ranges from 1 to 4 hours. Meet with your friends and collaboratively draw the map of your dungeon as you collect questionable rumors about its threats and treasures.

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Planedawn Orphans

Planedawn Orphans is a campaign kit that provides a flexible and versatile framework for the fantasy role-playing game of your choice. Set in the Planar City, a strange melting pot that connects the vast diversity of the multiverse. The players are Planar Orphans stranded in this city, their original home worlds destroyed, corrupted or lost. They are tasked to complete a Planar Key, a mighty artifact that will let them create a new plane for themselves and their fellow refugees.

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The Mending Circle

The Mending Circle tells stories of hope and healing. You come together as a coven of three witches sent to help. You are there for those that have no one by their side. You can be a helping hand, that one lucky break they need to get back on their feet.

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Discussions (3)
Customer avatar
Nicholas P March 28, 2022 4:21 pm UTC
Where do you get the cards?
Customer avatar
Ruben R June 08, 2021 9:18 pm UTC
PURCHASER
Why are there two Ex Umbra files for the rules? They are also significantly different in size (13MB vs 3MB).
Customer avatar
Johnathan C April 30, 2021 8:57 pm UTC
PURCHASER
Will the cards be available on DriveThruCards? Thanks!
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These products were created by scanning an original printed edition. Most older books are in scanned image format because original digital layout files never existed or were no longer available from the publisher.

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File Last Updated:
October 05, 2020
This title was added to our catalog on September 01, 2020.