(also known as 百舌鳥). Originally appearing in various development versions such as
The developers remain an enigmatic force. The available evidence paints a picture of solo creators or a small team working under the alias "Mozu Field" or "Sixie." A key insight into their character comes from a community post from late 2023. The developer, likely "Sixie," shared a candid reason for a development delay: they were a physical ailment that prevented them from releasing a December demo build. Alien Invasyndrome -v0.4- -Mozu Field Sixie- 2021
This is the most opaque and fascinating part of the query, as it seems to reference two distinct concepts blended together: (also known as 百舌鳥)
: The version "v0.4" mentioned in your query was an early build released around 2021. Since then, the developer has continued updating the game, with demo versions reaching v0.65 in 2025 and v0.99.1 in early 2026 . The developer, likely "Sixie," shared a candid reason