Digimon Card Game Sets: Booster, Extra Booster and Starter Decks

By CardSpicy Founder · October 6, 2026

The Digimon Card Game does not release one numbered set after another. It runs several product lines at once, each with its own code family, and a card can come from any of them. Knowing the lines is what lets you place a card in the game’s release history from the code printed on it.

Quick answer

There are three main lines. Boosters carry the BT codes and are the numbered main sets. Extra Boosters carry EX codes and are smaller side sets that fill in themes. Starter Decks carry ST codes and are preconstructed decks. Around those sit Theme Boosters, Advanced Boosters, Resurgence Boosters, Special Boosters and Advanced Decks, each with its own code.

The main lines and their codes

Booster packs use BT codes and form the numbered spine of the game, running from BT-01 upward. Extra Boosters use EX codes and are smaller releases built around a theme rather than advancing the main set count. Starter Decks use ST codes and are preconstructed, ready to play, and often the simplest way into a new colour or mechanic. A card’s code is therefore the quickest way to say where it came from.

The lines around them

Beyond the three main lines there are Theme Boosters, which support one deck theme; Advanced Boosters and Advanced Decks, built for a specific line; and the Special Boosters and Resurgence Boosters that repackage cards across sets. Each carries its own code family, which is why a card list sorted only by number will look out of order — there is not one numbering, but several running side by side.

How to tell which product a card came from

Read the card number printed on the card. The prefix names the line — BT, EX, ST and the rest — and the number places the card inside that product. This is the same check a collector runs on any card before anything else, and it works without a wrapper, because the number is printed on the card itself.

Why the structure matters for a collection

A collection that follows one line is a different project from one that follows the numbered spine. Because the lines overlap in characters and themes, the same Digimon can appear in a booster, an extra booster and a starter deck, each time with a different code. Sorting by code is the only way to keep a collection of one character from becoming a pile of duplicates.

Frequently asked questions

What do the Digimon Card Game set codes mean?

BT is the numbered Booster line, EX is the Extra Booster line, ST is the Starter Deck line. Other lines such as Advanced Boosters and Resurgence Boosters carry their own codes.

How many sets does the Digimon Card Game have?

The numbered Booster line runs past BT-20 and the Extra Booster line past EX-10, with dozens of Starter Decks and several other lines alongside them. The official rule site keeps the current list.

What is an Extra Booster?

A smaller release built around a theme rather than a continuation of the numbered set count, which is why it has its own EX code.

What is the difference between a Booster and a Starter Deck?

A Booster is a pack of random cards; a Starter Deck is a preconstructed deck that plays straight out of the box.

Can the same Digimon appear in more than one set?

Yes, and it often does. Each appearance carries its own card number, so the code is what distinguishes one printing from another.

Sources

Game rules, product contents and card counts are quoted from the publisher’s own materials at the date stated and can change without notice. Prices quoted anywhere on this site are secondary-market observations and move quickly; nothing here is a valuation or an investment recommendation. Our own asking prices for the cards we hold are on each product page.

Where to go next

• The CardSpicy card index — every card we track, with its PSA 10 population and market history (195 cards).
• The illustrator index — every artist behind those cards, card by card (110 artists).