.YDT File Extension

File used by Yu-Gi-Oh! Power of Chaos, a video game based on the Yu-Gi-Oh! trading card game; contains game data used for storing and loading game information; saved in the Yu-Gi-Oh! Power of Chaos Common\[playername]\ directory with the filename trunk.ydt.

Yu-Gi-Oh! Power of Chaos allows users to play duels against an artificial intelligence player named Joey Wheeler. Users can also play each other over a local area network (LAN).