An expandable card game grows through fixed, published releases rather than sealed packs of random cards. You know what is in a box before you buy it, everyone has access to the same pool, and the deck you want is a construction problem rather than a purchasing one.
That model has quietly become the preference of most competitive card players who are not already invested in a collectible game. Here is why, and what it looks like in practice.
The problem it solves
In a collectible card game, card access is distributed by chance and money. You open packs, you get what you get, and you buy singles to fill the gaps. That system funds enormous card pools and huge organised play, and it works for millions of people.
It also means that at some point you lose a game to a card you did not own. Not to a better read or a better line. To access.
An expandable card game removes that variable entirely. The full contents of every release are public. There is no gambling step between you and the cards.
What the model requires from a designer
Fixed contents raise the bar on design, because you cannot patch a weak set by making a card rare.
Everything has to be balanced against the assumption that every player has everything. That is a harder problem, and it is also the reason expandable card games tend to have tighter design than their collectible cousins.
Trials of MAYA
Trials of MAYA, out on Gamefound September 8, 2026, commits to this model explicitly, and its campaign language is unusually specific about it.
What is Trials of MAYA?
Trials of MAYA is an expandable card-driven arena combat game. It combines three genres: MOBAs, classic 90s tactics games, and TCGs without booster packs. It plays 1 to 4 players in 60 to 180 minutes for ages 14 and up, with nine asymmetric champions and 340-plus cards.
The commitments are four. Every box’s full card list is publicly visible before preorder opens. Contents are fixed at print. There are no booster packs, no random pulls and no crowdfunding-exclusive gameplay cards. All backer rewards and event promos, meaning pins, sleeves and art prints, are cosmetic only, so gameplay content is never locked behind a pledge window or an event.
Expansions are optional, and the core box is described as a complete competitive game that stays that way.
What that buys you is a construction exercise with complete information. Each champion has one species and two classes, and only cards sharing one of those traits, plus signature cards naming it, are legal in its deck. Decks run 24 to 40 cards. Working out the right list is a real problem, and it is a problem everyone gets to solve with the same tools.
Rulebooks and public metadata are on BoardGameGeek, the full breakdown is on the official page, and there is a Tabletop Simulator build.
How to evaluate any expandable card game
Four questions.
Is the full card list public before you buy? If you have to open something to find out, it is not really fixed content.
Are expansions additive or replacive? New champions, modes and cards are additive. Straight upgrades to what you already own are not.
Is anything gameplay-relevant exclusive? Convention promos and campaign exclusives that affect play reintroduce exactly the access problem the model exists to remove.
Is the core box complete? If the base game needs two expansions to be competitively interesting, the price you were quoted was not the price.
A game answering yes, additive, no and yes is one where the only thing separating you from a better player is play.
Follow or back Trials of MAYA on Gamefound.