Petit Depotto

Petit Depotto (プチデポット) is a Japanese indie game development circle, described on its official site as a "circle for indie game development." The group operates as a small, self-organized creative collective rather than a conventional corporate studio, and it is led by a member who goes by the handle "Mezukare" (めづかれ), referred to in blog posts as the "leader." The circle's official web presence is a blog hosted at globule.sblo.jp, where it posts development updates, announcements, and fan-facing news. Petit Depotto's best-known work is Gnosia, a social deduction game in which players must identify impostor-like characters aboard a spaceship through repeated time loops. The game has become the circle's flagship property and has expanded well beyond its original release into other media. According to the official blog, Gnosia celebrated its sixth anniversary on June 20, and the property has since been adapted into a TV anime, a stage play, and a smartphone app. The circle's blog documents a steady stream of Gnosia-related activity. In December 2024, the blog announced that a TV anime adaptation of Gnosia had been decided. In March 2025, it announced that the anime would begin airing in October 2025. An October 2025 post confirmed the broadcast and described roughly four years of production work, with the circle's leader serving as producer alongside staff from Aniplex. In April 2026, the blog thanked viewers following the anime's run, announced a Memorial Movie, confirmed a smartphone app version of the original Gnosia handled with the cooperation of PLAYISM, and revealed a stage adaptation scheduled for August 21 to September 6, 2026. As an entity, Petit Depotto remains a small independent creator. It is not known to be publicly listed, and no parent company or corporate owner is identified in the available evidence. Its identity is closely tied to Gnosia and to its direct, personal communication style with fans through its blog.

Petit Depotto is a Japanese indie game development circle. Its official blog describes it as a "circle for indie game development," indicating a small, self-organized creative group rather than a large corporate studio. The circle is led by a member known as "Mezukare" (めづかれ), who signs blog posts as the "leader" and has served as a producer on adaptations of the circle's flagship game. The circle's best-known and defining work is Gnosia, a social deduction game. The official blog notes that June 20 marked the sixth anniversary of Gnosia's birth, and the property has since grown into a multi-media franchise. The blog's archive shows activity from at least 2021 onward, with posts spanning 2021 through 2026. A major turning point came in December 2024, when the blog announced that a TV anime adaptation of Gnosia had been decided. In March 2025, the circle announced that the anime would begin airing in October 2025. On October 11, 2025, the blog confirmed the broadcast, with the leader stating that the anime had taken about four years to produce and that they had worked as a producer alongside Aniplex producer Kimura. The post expressed gratitude to fans and hope that the anime would reach both longtime supporters and newcomers. In April 2026, following the anime's run, the blog posted a thank-you message to everyone involved, to fans, and to those who had discovered Gnosia for the first time. The same post announced several new developments: a TV anime Memorial Movie, a smartphone app version of the original Gnosia handled with the cooperation of PLAYISM, and a stage adaptation that fuses improvisational theater with the game, scheduled for August 21 to September 6, 2026. The post also noted that April 1 was the birthday of the character SQ. Throughout its history, Petit Depotto has maintained a direct, personal relationship with its audience through its blog, using it to announce milestones, celebrate anniversaries, and share reflections on development and adaptation work. The circle remains independent, with no parent company or corporate owner identified in the available evidence.

• Blog archive shows activity from at least 2021 onward.

• Gnosia TV anime adaptation announced.

• Gnosia anime scheduled to begin airing in October 2025.

• Gnosia anime broadcast begins after roughly four years of production.

• Anime run concludes; Memorial Movie, smartphone app with PLAYISM, and stage adaptation announced.

Small independent Japanese game development circle with a fan-facing blog and a flagship social deduction title, Gnosia.

• Gnosia

  Social deduction video game and the circle's flagship property, later adapted into anime, stage play, and smartphone app.

• Gnosia smartphone app

  App version of the original Gnosia handled with the cooperation of PLAYISM.

• Gnosia TV anime

  Anime adaptation produced over roughly four years, broadcast beginning October 2025.

• Gnosia stage play

  Stage adaptation fusing improvisational theater and game, scheduled for August 21–September 6, 2026.

1. 1プチデポット official blogglobule.sblo.jp
2. 2Petit Depotto on Wikidatawikidata.org