Evgenia Liza, a 3D artist and Environment Artist at Cold Symmetry, known for Mortal Shell, worked on the project for about a year in her spare time. The main location became the ruins of Moon Castle, reinterpreted as a huge dark kingdom.
The project featured statues of Sailor Guardians, Moon Echoes reminiscent of Dark Souls bonfires, and a powerful enemy based on Luna and Artemis. Liza created most of the shown elements herself, using only some ready-made assets.
The project interested fans, who began discussing a full-fledged Sailor Moon game in this style. However, Twilight of the Moon Kingdom will remain a completed artistic work – the author does not plan to develop it into a full-fledged project.