DNF Duel is a 2D fighting game using Dungeon Fighter Online's characters/classes as fighters. Dungeon Fighter Online currently has 16 base characters with over 60 total classes, though there is some overlap between the male and female variations.
It was revealed at the 2020 Dungeon&Fighter Universe Festival in Korea.
It is being developed by Neople, Arc System Works and Eighting.

A date was not announced but It is planned to be a multi-platform release