School Days (スクールデイズ, Sukūru Deizu) is an animation adventure game developed by 0verflow. The game is vastly different from traditional visual novels in that it resembles an interactive anime with over seventy episodes of tv animation - a first for this genre.

It is presented in widescreen format, is divided into individual episodes similar to anime, and has opening and closing scenes for each one. The game has twenty-one possible endings, both good and bad.

The game is infamous for its bad endings, which are extremely violent, ranging from the killing of one of the other main characters to graphic depictions of suicide.

A spinoff of this game, Summer Days, was released by 0verflow using the same system, but with no such violent endings.

The game has spun off various adaptations, including an anime, a manga series, two OVAs, three novels, and a drama CD.

School Days L×H (Love&Hate), the PlayStation 2 version of the game, is scheduled for release in Japan on December 13, 2007.