It was released for PlayStation Vita on August 18, 2016, in Japan, and by Aksys Games in North America and Europe on July 28, 2017.

A two-part anime film adaptation by Studio Deen, titled Gekijōban Collar × Malice Deep Cover, premiered in May and June 2023.

On her way home from work, she is attacked and a collar with poison is placed around her neck; following this, she becomes involved with the "X-Day Incident", a string of murders done by a terrorist group called Adonis.

[10] Collar × Malice's sales numbers for its debut week differ between different sales charts: Media Create reported that it was the eleventh best selling video game of the week with 7,271 copies sold,[13] while Famitsu reported that it was the eight best selling with 9,406 copies sold.

[16] It was later revealed to be a two-part film, titled Gekijōban Collar × Malice Deep Cover, produced by Studio Deen and distributed by Avex Pictures.

It is directed by Hiroshi Watanabe and written by Sayaka Harada, with Yukiko Ban adapting Mai Hanamura's original designs for animation, and Masaru Yokoyama composing the music at Avex Pictures.