Look up cards and other information about the Yu-Gi-Oh! TCG, 遊戯王 유희왕 OCG, Master Duel, and Rush Duel in all official languages. Free and open source. Sponsored by YGOPRODECK.

Cardian is an open source Yu-Gi-Oh! card information bot. Supports TCG/OCG/Genesys, Master Duel and Duel Links.

Free and open source bot that provides customizable, flexible syntax to query card info and rulings/FAQs for the Yu-Gi-Oh! TCG and OCG in all languages supported by the official database.

Yu-Gi-Oh! search (YGO: OCG, TCG, MD and DL banlists), Voice Chat xp, Level/XP system, Level roles, Upvotes/Downvotes, Automatic threads and more! ---- ( Yugioh Tournaments coming soon...)

Look up cards, play rated matches, and host tournaments for any Yu-Gi-Oh! format.

柯瑞森，以中、日、英文卡名搜尋遊戲王卡片，連結官方資料庫，以及顯示OCG/TCG/MD的禁限數量。

Project Echelon is a replay-to-video converter for Project Ignis: EDOPro. Users can upload *.yrpX files and immediately convert them to MP4s.