YGO Lab and EDOPro

What EDOPro is

EDOPro is a free, open-source Yu-Gi-Oh! simulator from Project Ignis for Windows, macOS, Linux and Android. It automates the rules on ygopro-core and works offline, and it is how many players host games with friends.

Its computer opponent is WindBot. WindBot's own documentation describes it as a simple, deterministic bot: each deck it plays has to be prepared for it in advance. It has 47 such decks.

What YGO Lab is

YGO Lab runs the same engine in the browser, so the rules resolve the same way. The opponent is different. The Rival is an AI that pilots a real decklist: going first it plays the deck's combo lines, checked move by move on the engine; when you interrupt one it switches to a follow-up line or plans a new one; on your turn it decides when to use its hand traps.

Side by side

The same rules, a different opponent

Because both run ygopro-core with Project Ignis's card scripts, a combo resolves in YGO Lab the way it does in EDOPro. What changes is the other side of the table. A scripted bot plays what it was prepared to play. YGO Lab's AI follows the deck's real lines and then decides: which line fits its hand, how to continue when you interrupt it, when to spend a hand trap on your turn.

When EDOPro is the better choice

• You want to play offline.
• You want to host games with friends, or play on a local network.
• You want pre-release and OCG cards.

When YGO Lab is the better choice

• You want an opponent that plays a current deck's real combos and interrupts yours.
• You want to practice on a phone or a borrowed laptop, with nothing to install.
• You want to drill one moment: record your turn in Combos, interrupt it with the hand trap you expect, and practice that branch.

Moving your deck between them

EDOPro decks are .ydk files, and YGO Lab imports them directly, along with ydke:// links and pasted text lists. It exports .ydk too, so a list goes back to EDOPro unchanged.

Questions