{"rewrite":{"id":"r_c517fcb9ce256c8ddecc3fad","clusterId":"c_d94e8ca80183469c21a42ab5","slug":"cygames-subsidiary-citetail-dissolves-after-world-flipper-co-development","model":"deepseek-v4-flash","headline":"Cygames Subsidiary Citetail Dissolves After WORLD FLIPPER Co-Development","summary":"Cygames subsidiary Citetail dissolved effective August 31, according to a dissolution notice published in the official gazette on September 1. The company was known for co-developing the smartphone action game WORLD FLIPPER with Cygames, and also worked on titles including Rabi tobi and Kirubeji. WORLD FLIPPER launched in November 2019 with a pinball-inspired game system, and its online service ended on February 20, 2024. An offline version with limited features remains available. The dissolution notice appeared in the September 1 edition of the gazette, the standard public record for corporate closures in Japan. Citetail's work on WORLD FLIPPER spanned the game's full service period, from its November 2019 launch through the February 2024 shutdown of online operations. The company's other titles, Rabi tobi and Kirubeji, were also developed under the Citetail name.","whyItMatters":"The dissolution follows the February 2024 end of WORLD FLIPPER's online service by roughly two and a half years, leaving the studio that built the game's pinball system with no active live-service product to support.","webCardHtml":"\u003cp\u003eBoth GameBusiness.jp and Inside report the dissolution, with Inside\u0026#39;s article crediting GameBusiness.jp as the original source. The notice appeared in the September 1 edition of the official gazette, the standard public record for corporate closures in Japan. Citetail was a Cygames subsidiary known for co-developing the smartphone action game WORLD FLIPPER with the parent company. The game used a pinball-inspired system and launched in November 2019, running its online service until February 20, 2024. An offline version with limited features remains available. Citetail also developed Rabi tobi and Kirubeji. The dissolution took effect August 31, and the gazette notice was published the following day. The closure follows the end of WORLD FLIPPER\u0026#39;s online service by roughly two and a half years, leaving the studio\u0026#39;s best-known product in offline-only form.\u003c/p\u003e","blueskyPost":"Cygames subsidiary Citetail, co-developer of the pinball-style action game WORLD FLIPPER, dissolved on August 31. The game's online service ended in February 2024, but an offline version with limited features still exists.","twitterPost":"The official gazette published Citetail's dissolution notice on September 1. The studio behind WORLD FLIPPER, Rabi tobi, and Kirubeji is now closed, two and a half years after its flagship game went offline-only.","threadsPost":null,"newsletterBlurb":"Cygames subsidiary Citetail has dissolved, per a September 1 notice in the official gazette. The studio co-developed the pinball-style action game WORLD FLIPPER with Cygames, whose online service ended in February 2024. An offline version of the game remains available.","attributionJson":"[{\"source\":\"GameBusiness.jp\",\"url\":\"https://www.gamebusiness.jp/article/2026/09/01/27848.html\",\"title\":\"Cygames子会社のシテイルが解散-『ワールドフリッパー』を共同開発\"},{\"source\":\"Inside\",\"url\":\"https://www.inside-games.jp/article/2026/09/01/187103.html\",\"title\":\"Cygames子会社のシテイルが解散-『ワールドフリッパー』を共同開発\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":6462,"outputTokens":3259,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1788299248,"createdAt":"2026-09-01T21:33:17.000Z","publishedAt":"2026-09-01T21:42:22.000Z","updatedAt":"2026-09-01T21:42:22.000Z"},"cluster":{"id":"c_d94e8ca80183469c21a42ab5","canonicalTitle":"Cygames子会社のシテイルが解散―『ワールドフリッパー』を共同開発","representativeArticleId":"a_1ead634a317a7d3cd7d10283","sourceCount":2,"writtenSourceCount":2,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"World Flipper\"],\"studios\":[\"Cygames\",\"Citetail\"],\"people\":[],\"type\":\"business\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-09-01T05:03:16.000Z","lastSeenAt":"2026-09-01T10:10:03.000Z","updatedAt":"2026-09-01T21:42:23.000Z"},"attribution":[{"source":"Inside","url":"https://www.inside-games.jp/article/2026/09/01/187103.html","title":"Cygames子会社のシテイルが解散―『ワールドフリッパー』を共同開発"},{"source":"GameBusiness.jp","url":"https://www.gamebusiness.jp/article/2026/09/01/27848.html","title":"Cygames子会社のシテイルが解散―『ワールドフリッパー』を共同開発"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["World Flipper"],"studios":["Cygames","Citetail"],"people":[],"type":"business","domain":"games","is_roundup":false},"keyFacts":["Cygames subsidiary Citetail dissolved effective August 31, with the dissolution notice published in the official gazette on September 1.","Citetail co-developed the smartphone action game WORLD FLIPPER with Cygames, and also worked on Rabi tobi and Kirubeji.","WORLD FLIPPER launched in November 2019 and ended its online service on February 20, 2024.","An offline version of WORLD FLIPPER with limited features remains available."]}