The quirky-titled Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka or Is It Wrong To Try And Pick Up Girls In A Dungeon? adaptation has been confirmed by Sword Art Online voice actor, Matsuoka Yoshitsugu, during a live telecast in Niconico. The light novel is written by Fujino Omori with illustrations by Suzuhito Yasudo (Durara!!) under BA Bunko Publications. The popular novel is in its fifth volume so far and it is estimated that 500,000 copies have been sold so far.
The manga adaptation is drawn by Kunieda and is still going strong in Young Gangan seinen magazine, since 2013.
Directed by Yoshiki Yamakawa who did Kill Me Baby, it will be animated by Genco and J.C. Staff.
Animation director will be Shingeki Kimoto who did his magic for A Certain Magical Index/Scientific Railgun. The script will be handled by Hideki Shirane who did scripting for Shakugan no Shana and Date a Live.
The cast includes Matsuoka Yoshitsugu (Eden of East, No Game No Life, Sword Art Online), Inori Minase (Black Bullet, Aldnoah Zero), Saori Onishi (Strike the Blood, Mahouka) and Maaya Uchida (Noragami, Rail Wars!). No specific date is given for the anime’s release so far.
On a side note, Yen Press will be translating the light novels into English and releasing them in December. The synopsis provided by them is:
“In Orario, fearless adventurers band together in search of fame and fortune within the monstrous underground labyrinth known as Dungeon.
But while riches and renown are incentive enough for most, Bell Cranel, would-be hero extraordinaire, has bigger plans.
He wants to pick up girls.
Is it wrong to face the perils of Dungeon alone, in a single-member guild blessed by a failed goddess? Maybe. Is it wrong to dream of playing hero to hapless maidens in Dungeon? Maybe not. After one misguided adventure, Bell quickly discovers that anything can happen in the labyrinth–even chance encounters with beautiful women. The only problem? He’s the one who winds up the damsel in distress! !”
— 『ダンまち』アニメ公式 (@danmachi_anime) October 24, 2014
The preview for light novel released in 2012: