Decuma deck availability update:

More Decuma decks will be available! We are currently exploring the possibility of partnering with a publishing company to increase the availability of Decuma, so current production is on pause while that is settled. If that doesn’t work out, we will resume publishing Decuma in-house and will repost it when it is available.

Please join our news list to get notified when Decuma is available again!


Decuma is “the R&D for your RPG”: a tarot-inspired card game that helps the GM and their players collaboratively create all the important details for their campaign, including key locations, character connections, and setting conflicts. Plus, Decuma can be paired with any tabletop RPG setting or system, including D&D, Savage Worlds, Powered by the Apocalypse, Pathfinder, and more—so you never have to worry about compatibility.

Decuma uses a unique set of question cards that give the whole experience a feeling of mystical interconnectedness—as if Destiny herself is guiding the campaign! Decuma saves the GM a ton of prep time and can be easily customized to focus on (or exclude) specific aspects of campaign creation. You can use it to add depth to a pre-written adventure or to create a home-brewed world from scratch!

Best of all: this big world-building tool fits into a little card box! There are no books to lug around!


Character Connections: The Sun Cards – Suits of Wands & Cups

Players come to the table with basic character concepts, but by using Decuma they create backstory and connections with one another that enrich the story. It gives the players and the GM lots of story elements to work with so no more strangers meeting in a tavern!

Location Building: The Star Cards – Suits of Coins & Swords

Decuma facilitates collaborative world building for any setting! Whether you need a fantasy village, a generation ship in space or a neighborhood in an urban city, this game can make it! By the end of your session you will have a map to reference during your campaign, NPCs the party can interact with, and cultural elements, such as slang terms or philosophical beliefs. Best of all, the players know the location as well as the GM so lots of explanation time is saved later!

Group Dynamics: The Moon Cards – The Major Arcana

Your PCs shouldn’t just have history with each other! They have been interacting with the rest of the world too! Who are the party’s allies? What do they believe in? What big event made them famous or infamous? Building another layer on the location and character connections, they players also gets to build a collective history that will impact how they interact with the game world as a party!

 Decuma can be easily customized to fit your needs just by including or excluding cards!

Running a pre-written D&D adventure in Waterdeep? You already have a location! Leave out the star cards and just build character connections and world dynamics!

Playing a PBTA game like Masks or Demigods that has built in character connection mechanics? Just play with the star and moon cards to build your location and your world dynamics!

What are people saying about Decuma?



Kimi Hughes

Writer and Creator Kimi has been creating table-top RPG content for over a decade. After playing and GMing dozens of systems, she developed a fondness for TTRPG systems that included collaborative world and backstory development. That fondness gave her the idea for a card system that could add these elements to any RPG system: Decuma! With her company Golden Lasso Games, she develops indie RPGs and tools for gaming. She also manages the Happy Jacks RPG network of streams and podcasts.

Samantha Terry

Samantha is a professional designer and artist. She has designed merchandise for a number of companies, including Blizzard, DC Comics, and Warner Bros. Entertainment. A talented artist and tarot enthusiast, Samantha is drawing incredible custom designs for the cards in the Decuma deck. She also uses her skill to create custom clothing custom clothing and jewelry for her company, Stiarna. With her company Golden Lasso Games, she develops indie RPGs and tools for gaming. She also manages the Happy Jacks RPG network of streams and podcasts.

Aabria Iyengar

Aabria played in the very first test game of Decuma, and had been instrumental in the development of the game since that day. She is a social media wizard and is currently the CMO and acting CEO of Dice Envy. A skilled GM and table-top RPG player, Aabria can be seen streaming games regularly on HyperRPG, Saving Throw Show and Happy Jacks RPG.

Mac Beauvais

Mac Beauvais is a seasoned brand professional specializing in licensed product management and development. She has 10+ years experience in the entertainment business overseeing thousands of products on over 30 brands, from concept to completion She also has a personal interest and passion for the entertainment field, having immersed herself in mediums such as film, console gaming, online gaming, literature, comics and more.

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