OPTCG Simulator
Every card in the catalog is automated

Shuffle up.
Every card, fully automated.

A fan-made simulator for the One Piece Card Game with a rules engine that plays the cards for you. Build a deck, face the bot or a friend, and watch the effects resolve on a 3D table.
Play nowHow it works
ST01-001
ST02-001
OP09-022
ST03-001
ST04-001

Built with

What you get

The rules do the work.

The engine knows the game. Costs, triggers, blockers, counters, replacement effects and the odd rule-bending Leader all resolve without a rulebook open next to you.
Full rules engine
Turn structure, DON!!, battles, Life, triggers and Counter steps are enforced. Illegal moves are simply not offered.
Every card automated
All card effects in the catalog run in the engine, from "K.O. up to 1 Character" to Leaders that rewrite how you win or lose.
Deck builder
Filter the whole catalog, build legal 50-card decks, import and export deck lists in the formats other tools use.
Bot, matchmaking, rooms
Practise against the bot, queue for a random opponent, or create a room and share the code with a friend.
Decks on every device
Sign in with your email, no password needed, and your decks follow you from desktop to phone.
Desktop and mobile
Drag cards with a mouse or a finger. The table reframes itself for any screen; landscape phones play well.
By the numbers

Not a prototype.

The catalog is pulled from optcgapi.com and every card text is turned into engine data, checked by tests and thousands of simulated games.
2,500+
Cards automated
100%
Of card effects
58
Sets covered
0
Downloads needed

Ready to draw your opening hand?

Free, in the browser, no install. Start with a Starter Deck or bring your own list.
Play now