Ryukahn Desert (リュカーン砂漠, Ryukān Sabaku?) is a location in the original Final Fantasy, south of Crescent Lake. In the Final Fantasy Origins releases, it was renamed to Lykion Desert, which was kept for later releases.
The Ryukahn Desert can be found in Dissidia 012's story mode overworld, at the Elvan Snowlands region. In some storylines, the eponymous Gateway located there is active, and a moogle shop operates here.