Starting April 1, 2026, Duelists will need the official Yu-Gi-Oh! NEURON tournament support app to register for TCG events at Official Tournament Stores.
If you have an existing CARD GAME ID, check our guides on how to link it before installing NEURON. Otherwise, NEURON will create a new one if it isn’t connected to your KONAMI ID. https://www.yugioh-card.com/en/products/neuron/
