MODULE · 札
Collect judoka, one draw at a time.
Card Collection turns your training into a card game. Every judoka is an original illustrated character, drawn from themed sets — earn tickets through the app, then redeem them for a random card.
Imaginary judoka
Every card features an original illustrated character, with a name, a nickname, stats and a signature technique.
Random draws
Spend tickets to draw a random card from the set of your choice — you never know who you'll get.
Four rarity tiers
From Student to Master, every card belongs to a rarity tier — and each set hides a single, even rarer Ultimate card.
Free & Premium
Free: Starter Set only. Premium: every set unlocked, including new ones added over time.

RARITY TIERS
From Student to Master.
Every card belongs to one of four rarity tiers. The higher the tier, the rarer the draw.
Student
The most common cards — your first recruits.
Apprentice
A step up in skill and shine.
Sensei
Seasoned fighters, harder to draw.
Master
The rarest cards in the set. Each set also holds a single Ultimate card, rarer still.
EARN TICKETS
Every action fuels your collection.
Tickets are earned simply by using JudoMaster — the more you train, play and show up, the more cards you can draw.
- Open the app every day
- Play Belt Quiz and Knowledge Quiz rounds
- Unlock badges
- Reach your weekly goals
- Train with the Training module
CARD SETS
One free set. A growing collection with Premium.
JudoMaster launches with several card sets, and new ones will keep being added over time. The Starter Set is free for everyone — Premium unlocks every other set, present and future.
Starter Set — free
12 judoka to collect, available to every player from day one.
Every other set — Premium
World Dojos, Myths & Legends, and every future set — unlocked with Premium.

CHESTS · PREMIUM
Make the top 10, open a chest.
Premium members only: finish in the top 10 of a quiz's Hall of Fame and win a chest. Inside are special tickets — uncommon, rare, even ultra-rare — that get you rarer cards.
Hall of Fame top 10
Climb into the top 10 of a quiz leaderboard to earn a chest.
Special tickets
The higher your rank, the more special tickets the chest holds (uncommon, rare, ultra-rare) — a faster way to complete your sets.
Premium members only
Chests are reserved for Premium members, the only players who can appear on the Hall of Fame.

IN THE APP
Draw, collect, complete your sets.





Begin your path.
Free to download. Free to use. Built by judoka, for judoka.