According to Comp Ace magazine August issue, Lass's adult PC game "11eyes Tsumi to Batsu to Aganai no Shoujo" was announced to get a TV anime and manga adaptation. The anime will be aired this autumn.

11eyes XBOX 360 website (non-adult)

Synopsis:
Satsuki Kakeru lost his sister by suicide and has been living a dull life. One day, he is transported into a bizarre world "Red Night" along with his friend Minase Yuka. In order to survive and escape from Red Night, he fights against Dark Spirits (Ralva) and Black Nights.

Source: Scan of Comp Ace

Staff
Director: Shimoda Masami ("Zegapain", "Ai yori Aoshi")
Series Organizer: Kanamaki Ken-ichi ("Natsume Yuujinchou", "Sayonara Zetsubou Sensei")
Character Design & General Animation Director: Hara Shouji ("Akane-iro ni Somaru Saka", "Saint October")
Production Studio: Dogakobo

Source: Scan of Megami