

The story was written by light novel author Takeshi Matsuyama, and character design was shared between Key's in-house artist Fumuyun and Sora Saeki. Instead, the player proceeds through the story solely by reading.

Lunaria is the fifth of Key's "kinetic novels"-beginning with Planetarian: The Reverie of a Little Planet (2004)-since its gameplay offers no choices or alternate endings. One day, he wanders onto an unknown server on the Moon and meets the AI avatar Lunar-Q, who earnestly wants to see the Earth herself. The story follows high school student Tabito Kamishiro, known as T-bit when playing the virtual reality racing game Skyout, which earns him an income in the form of prize money. It was ported to iOS and Android devices. It was released on Decemfor Windows and is Key's 17th game overall. Lunaria: Virtualized Moonchild is a Japanese science fiction visual novel developed by Key, a brand of Visual Arts.
