Dueling Dimension

Physical trading cards give you space. Digital deck builders give you convenience. Dueling Dimension gives you both, in mixed reality. No table. No screen. No limits.

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Inspiration

Every Trading Card Game (TCG) player knows the ritual: spreading cards across a table, grouping by archetype, swapping cards in and out until the deck feels right. It's tactile, spatial, satisfying. But it's also slow, expensive, and limited by how much table space you have.

Digital deck builders solved the logistics, but they crammed everything into a tiny screen. You're stuck scrolling through lists, switching between views, never getting a good overview of your full deck.

I wanted the best of both worlds. The spatial freedom of physical cards, combined with the speed and convenience of digital. Mixed reality makes that possible. Dueling Dimension is my answer to the question: What does TCG deck building look like when you're no longer bound by a screen or a table?

What it does

Dueling Dimension is a mixed reality deck builder for TCGs (currently only Yu-Gi-Oh!) on the Meta Quest 3. You get large floating panels in your space: a card collection on one side, your deck on the other. Filter by name, card type, or attributes. Browse thousands of cards without squinting at a small screen. Build your deck with room to breathe.

This submission represents the first step: a functional card browser and deck builder with filtering. The vision goes much further.

How I built it

Built in Unity with the Meta XR All-in-One SDK. Card data is pulled from the YGOProDeck API, which provides the full Yu-Gi-Oh! card database. The UI is designed for MR-first interaction: panels positioned in world space, optimized for readability and comfort.

Challenges I ran into

Designing UI/UX for MR is a different beast. What works on a phone doesn't translate directly. The UX needed complete rethinking. Balancing information density with comfort was a constant challenge.

Accomplishments that I'm proud of

This is the first MR deck builder for TCGs, not a port of an existing app. It's a ground-up exploration of what this experience could be. Even at this early stage, the feeling of having your cards floating in front of you, with space to see everything, validates the concept.

What I learned

MR UI/UX design requires unlearning a lot of assumptions from 2D interfaces. Depth, scale, and viewing angles matter in ways that don't exist on flat screens. I also gained a deeper appreciation for how much spatial freedom matters for tasks like deck building. It's not just a nice-to-have, it fundamentally changes how you think.

What's next for Dueling Dimension

Deck building is just the first chapter. Dueling Dimension is building toward something bigger: a full MR card game experience. The kind you've seen in anime, brought to life in your living room.

Planned features include:

  • Deck saving and sharing — export and import deck lists
  • Test hand draws — simulate opening hands to validate consistency
  • 3D card models — see your monsters in full 3D
  • Multi-TCG support — expand beyond Yu-Gi-Oh! to other trading card games
  • MR dueling — summon monsters, activate spells, and battle opponents in mixed reality

First, we master deck building. Then, we duel.

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