Dungeon Fighter Online, also known as DFO, is a online multiplayer beat 'em up action RPG, developed and published for personal computers by Neople, a South Korean subsidiary of Nexon, and originally published by Hangame in 2005. The game was originally released in South Korea as Dungeon & Fighter (던전앤파이터) and in Japan as Arad Senki (アラド戦記, Arado Senki; lit. War Chronicles of Arad), while published for Chine by Tencent.
DFO is one of the most-played and highest-grossing video games of all time, reaching a total of 600 million players worldwide and having grossed $13.4 billion in lifetime revenue as of 2019. This also makes it one of the highest-grossing entertainment media products of all time.
The game has received Japanese anime and manga adaptations. The first anime titled Arad Senki: Slap Up Party (アラド戦記 ～スラップアップパーティー～) was produced by Gonzo aired in Japan from April 4 to September 26, 2009. The second anime titled Arad Senki: Reversal of Fate (アラド：逆転の輪) was produced by Tencent and LIDENFILMS Studios and was uploaded online in China, while the Japanese dub aired on TV Tokyo from July 4, 2020.
Slap up PartyEdit
On the continent of Arad in the year 981 after "the cursed light of Kazan" has fallen across the land, a man named Baron sets his adventures across the continent after his arm gets "cursed". After finding a sword that has been possessed by the spirit Roxy, he embarks on a quest to unravel the secret of the curse and meets various people who also join his party.