Taiwanese adult game publisher Mango Party announced that the casual breeding game Lifeform Zero, developed by Sins of Succubus, is scheduled to be released on February 23 on Steam, and will support five languages: Traditional Chinese, Simplified Chinese, English, Japanese, and Korean.

A small meteorite has fallen to Earth. Identified by government authorities as an extraterrestrial egg, it's classified as a potentially dangerous entity and placed under confinement at the SCR Center. Assuming the role of a death row inmate volunteering at SCR for a shot at amnesty, you soon realize your task involves aiding the organization in studying and nurturing this mysterious egg.

This game revolves around nurturing the extraterrestrial being "Lifeform Zero" in a pet breeding simulation. Beginning with the hatching of a massive egg, the game advances through multiple developmental stages. Your responsibilities include maintaining the environment, feeding the lifeform, and engaging in interactions to foster her healthy growth into adulthood.

Throughout the game, her levels of satiety, cleanliness, and affection will decrease, demanding you to remain vigilant in fulfilling her fundamental needs. As affection levels increase, you will unlock further story progression and thus participate in intimate interactions with the Lifeform Zero.