This beginner's guide takes you from a fresh download to your first tournament on YGO Omega, the free Yu-Gi-Oh! simulator built by Duelists Unite. You don't need to own a single card: every card is unlocked from the first launch, and there is no currency, crafting or pack to open.
The steps follow the order most new players go in. Install the client, build a deck in the browser, pick how you want to duel, then move on to ranked and tournaments once the basics feel easy.
Download and install the client
Get the launcher from the download page. There are builds for Windows, macOS, Linux, Android and iOS, and the install takes under two minutes. Omega doesn't run in a browser: duels happen in the client, while the site handles decks, tournaments, rankings and this wiki.
The launcher keeps the client up to date. Let it finish updating before you duel, since new cards and script fixes arrive through those updates.
To save decks and register for tournaments on the site, sign in with your Discord account.
Build your first deck
Open the Deck Builder. It searches the whole card pool, filters by attribute, level, type, archetype and banlist status, and flags anything that would make the deck illegal in the format you picked. Save the list, share the link if you like, and load it into Omega.
The rules for a TCG deck:
- 40 to 60 cards.

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