The story is set on island ruins after the destruction of the Earth, leaving behind eight people.

Zanki Zero was released by Spike Chunsoft in Japan on July 5, 2018,[3] and in North America and Europe on April 9, 2019.

Some content had to be changed to be able to release the game on Steam and PlayStation 4 in the West, such as tweaking scenes where a character's underwear could be seen, and removing or changing scenes featuring child characters that could be interpreted as sexual.

The cover art for the PlayStation 4 version also had to be modified to meet public storefront display standards.

[7] The game's PlayStation 4 and PlayStation Vita versions were the fourth and seventh best selling games of the week during their debut week in Japan, selling 15,541 and 9,111 copies, respectively;[12] the PlayStation 4 version sold another 4,164 copies during its second week, bringing total physical Japanese sales of the game to at least 28,816.