About First Edition
A free, fan-made Yu-Gi-Oh! pack simulator. No account. No install. Just open packs.
What is this?
First Edition simulates opening Yu-Gi-Oh! packs the way they shipped — era-accurate rarity ratios, card pool, and slot structure. It's for players curious what a set from a given era felt like to open, collectors doing expected-value planning, or anyone chasing a nostalgia hit without spending money on old cardboard.
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Where do the ratios come from?
Pull ratios for the current sets are sourced from community research documented at Yugipedia and YGO Prog. Card pool data is provided by the YGOPRODeck API.
| Set | Ratio source | Notes |
|---|---|---|
| LOB — Legend of Blue Eyes White Dragon | Yugipedia / YGO Prog | Super Short Prints treated as equal-weight commons |
| MRD — Metal Raiders | Yugipedia / YGO Prog | Super Short Prints treated as equal-weight commons |
Known limitations
- Super Short Prints (SSPs) — LOB and MRD both contain commons with unusually low insertion rates. Exact SSP rates are not publicly documented. This simulator treats all commons as equal weight; real booster boxes will have some commons appearing more rarely than others.
- Regional variants — Ratios reflect North American 1st Edition print runs. European, Asian, and later-print booster ratios may differ.
- Set selection — v1 launches with two sets. More sets are coming; we only add sets where we're confident in the sourced ratios.
Legal
First Edition is an independent fan project. It is not affiliated with, sponsored by, or endorsed by Konami Digital Entertainment, Inc. or Shueisha. Yu-Gi-Oh!, the Yu-Gi-Oh! logo, and all related names, characters, and card art are trademarks and/or copyrights of Konami Digital Entertainment and their respective rights holders. Card images are used for fan, non-commercial, reference purposes only.
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