Coded-Dragon was the personal website of Austin Allman, which hosted an English-language Koi-Koi web game published in 2020. It was developed by Adam “CodaHighland” Higerd.
The game was previously found at http://coded-dragon.com/hanafuda/lobby/, but the site has gone offline some time prior to September 2023, and the game is no longer available. No archived copies are known.