Steam Visual Novel My Planet MOON CHILD Puts First Contact at a Distance
The Automaton feature spotlights the game as a domestic Steam title whose theme is not the encounter with aliens itself, but the quiet tension of cultures that seem understandable yet remain decisively different.
Reporting from 1 source: Automaton.
The doujin circle D.U.F.F. released the visual novel My Planet - MOON CHILD - on Steam on July 1, 2026, after it had been on sale since September 2025 on DLsite and BOOTH. The sci-fi suspense adventure follows lunar survivors exploring an unknown planet and meeting human-like aliens, with a story that alternates between present-day exploration and flashbacks to lunar base life.
My Planet - MOON CHILD - is a first-contact story that keeps its aliens at arm's length. The game, from doujin circle D.U.F.F., follows protagonist Jinan and Hitoriko, a companion from the slums, as they land on an unknown planet as part of an exploration crew. The aliens there live in societies, exchange words, and resemble humans, but a decisive gap in values creates the story's tension.
The narrative alternates between a present part covering planetary exploration and a flashback part that reveals life on the lunar base and the relationship between Jinan and Hitoriko. The two timelines appear independent at first, then complement each other as the story progresses. The alien heroine Nora stands out because she shows little emotion, making slight changes in expression memorable, with standing art and event CGs drawn by D.U.F.F.'s Hirata, who also works as a manga artist.
The game is rated for violent depictions but contains no sexual expressions. It is on sale for PC on Steam, DLsite, and BOOTH, with a playtime of 7 to 10 hours for 530 yen.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.