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Building the GRUNTS TCG with AI agents

A walkthrough of how the GRUNTS trading-card game came together — card design, a numbered set, deck building, and a battle sim that actually applies each card's mechanics.

GRUNTS / World War 0x is our flagship worked example. The TCG Card Designer drafts cards, the set tools track rarity and completion, and the deck builder validates against the rules.

The battle simulator is the fun part: it applies weakness, resistance, status effects, abilities, and conditional damage — and now chooses the highest-value attack, not just the biggest number. That means deck-power and balance numbers reflect a card's whole kit.

From set to drop

A finished set can ship as a Solana NFT collection — each card becomes a token whose gameplay attributes map to traits. One pipeline, cards to mint.