Why Are We Here?
This is a deck of cards.
You can shuffle it, deal it, and play familiar games with it.
But the goal here was to see how far that idea could be pushed without breaking it.
This is the first in a series about designing what I’ve been calling the Tau Deck: a single deck intended to support:
- standard card games - both of the 52-card variety and specialized decks
- new game design
- divination, interpretation or worldbuilding
Those uses are intentionally close in priority, but the order matters. If it can’t function as a normal deck, the rest isn’t very interesting.
Why This Exists
I’ve gotten into the everyday carry craze. Nothing extreme, just a few things I carry regularly. One of those is a deck of cards.
It turns out a deck is incredibly useful. Waiting at a restaurant, traveling, killing time — you can almost always do something with it. It’s compact, familiar, and flexible.
At the same time, we play a lot of modern board games. Those tend to have richer systems — more structure, more variety, more ways to interact.
Switching between those two worlds highlights a gap. A standard deck is incredibly useful and accessible, but at the same time limiting.
Can a single deck cover a little more ground, without losing what makes it useful in the first place?
The Problem with “More”
There are already plenty of specialized decks:
- standard playing cards
- Tarot
- word decks
- prompt decks
- custom game decks
Each one does something well. The problem is that they don’t compose.
You can’t easily:
- reuse mechanics across them
- combine them into something new
- or extend one without replacing it entirely
So the naive solution is obvious:
just add more to a deck
More symbols. More categories. More mechanics.
That approach fails quickly.
It stops behaving like a deck. It becomes harder to read. It requires explanation.
More Isn’t the Same as Structure
There’s another failure mode here that’s less obvious.
It’s easy to add things.
You can put more icons on a card, more markers, more categories — and technically you’ve increased what the deck can express. But if those additions are arbitrary, they don’t really help – or they do, up to a point.
Mostly they just make the card busier.
There’s a difference between:
- adding elements randomly
- adding elements with some underlying structure or intent
Even if that structure isn’t immediately visible, it matters.
When things are connected — balanced, distributed, or constrained in some way — the deck starts to feel designed instead of just decorated.
That has a few side effects:
- patterns show up over time
- combinations feel less arbitrary
- there’s room for discovery, even after repeated use
It also makes the deck more usable for game design. If someone wants to build something on top of it, they can rely on those structures instead of working around noise.
So “adding more” isn’t just about restraint.
It’s about making sure that anything you add has a reason to exist — even if that reason stays mostly hidden. Otherwise the whole thing becomes a distracting mess.
The Constraint
That leads to the first and most important constraint:
It still has to behave like a deck of cards.
That means:
- you can shuffle it
- you can deal it
- you can map it to familiar games
No instructions required.
This constraint doesn’t just guide the design — it limits it.
What wasn’t clear early on was whether all my fancy ideas could coexist.
- Would the added structure get in the way, even when playing a familiar 52-card game?
- Would flexibility make it too vague?
- Would playing just be too overwhelming and feel like noise?
A lot of the design process was figuring out where those boundaries actually are.
Beginnings
We'll talk more about this later, but one of the starting points was finding The EverDeck. I thought it was clever how it combined familiar ranks and suits with words and other systems. It gave the cards their own identity and gave you more ways to play.
Starting with this also turned out to be more difficult than expected.
Even before adding additional layers or mechanics, just getting that basic combination to work — in a way that was consistent, readable, and reusable — required iteration.
And iteration. And more. And AI help, and dead ends and experiments.
Then layering on more ideas until I was satisfied or things broke.
I also should say I definitely do not consider myself an artist, but as I thought about this more, certain stylistic ideas formed in my head -- and for some reason it really tickled my need for creation and seemed achievable for my skill level. Time would tell on that front.
But at least starting out, this seemed like a great project that married math, language, design and artistic skills and I was determined to dive in (having never done anything like this before).
Oh, and I will get it out of the way here and acknowledge AI help. Specifically in word generation, some mechanical verification and artistic critique. But all system ideas, glyph designs and icons (for better or worse) are my originals.
Onward
This project started as a simple question about making a more flexible deck.
It turned into a system design problem, coupled with solving puzzles.
At a minimum, the goal is to end up with something I actually use — a deck I can carry, play with, and occasionally experiment with. I designed it for myself, and I freely admit the complexity here might be too much and the whole thing is uninteresting to anyone else.
If it also supports new games, or sparks ideas, or turns out to be useful in ways I didn’t expect to other people, that’s a bonus. I personally hope it continues to surprise, delight and inspire.