{"rewrite":{"id":"r_5c98d97691cd57cae5fa1c72","clusterId":"c_155819203ced0457efd77f06","slug":"hong-kong-rpg-the-book-of-prosperity-debuts-at-osaka-indie-games-summit-2026","model":"deepseek-v4-1-flash","headline":"Hong Kong RPG The Book of Prosperity Debuts at Osaka Indie Games Summit 2026","summary":"The 2D action RPG The Book of Prosperity from Hong Kong solo developer SingKeys was exhibited at OSAKA INDIE GAMES SUMMIT 2026 on October 3 and 4. The game, which SingKeys has developed alone for 7 years alongside a day job, follows a student named Cyrus who is pulled into a parallel world ruled by an organization called The Circle. Two demo units offered 15-minute story play and a BATTLE ONLY time attack mode.","whyItMatters":"The Osaka showing gives a seven-year solo project its introduction to the Japanese indie circuit, with a combat hook built on timing instead of input complexity.","webCardHtml":"\u003cp\u003eSingKeys has been building The Book of Prosperity after work for seven years, and OIGS 2026 was the first showcase event he has exhibited at. The booth ran two demo units: a 15-minute experience covering story and gameplay, and a BATTLE ONLY mode for time attack combat.\u003c/p\u003e\u003cp\u003eCombat runs on parries, dodges, skill combos, and resource management. In play, a circle appears when attacking, and pressing the button as it shrinks and returns lets skills chain without spending stamina. The world is pixel-art Hong Kong, and the protagonist Cyrus fights early enemies with a math textbook before he learns magic.\u003c/p\u003e","blueskyPost":"SingKeys built The Book of Prosperity alone for 7 years around a day job, so the demo's BATTLE ONLY time attack is the only mode that works without the story context a solo dev cannot demo in 15 minutes.","twitterPost":"SingKeys spent 7 years on The Book of Prosperity around a day job, so the OIGS 2026 demo splits into a 15-minute story slice and a BATTLE ONLY time attack mode.","threadsPost":"SingKeys built The Book of Prosperity alone for 7 years while holding a day job. That schedule shapes what OIGS 2026 could show: a 15-minute story run and a BATTLE ONLY time attack mode, since a solo developer cannot demo the full parallel-world structure in a convention slot.","newsletterBlurb":"Hong Kong solo developer SingKeys exhibited The Book of Prosperity at OSAKA INDIE GAMES SUMMIT 2026 on October 3 and 4. He has developed the 2D action RPG alone for seven years while holding a full-time job. The demo pairs a 15-minute story section with a BATTLE ONLY time attack mode.","attributionJson":"[{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/047/G104753/20261003011/\",\"title\":\"Hong Kong Action RPG \\\"The Book of Prosperity,\\\" Where You Beat Enemies With a Math Textbook - An Interview With the Solo Developer Who Has Kept Building It for 7 Years Alongside a Day Job [OIGS2026]\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4776,"outputTokens":632,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1791124172,"createdAt":"2026-10-04T14:26:24.000Z","publishedAt":"2026-10-04T14:28:25.000Z","updatedAt":"2026-10-04T14:28:25.000Z"},"cluster":{"id":"c_155819203ced0457efd77f06","canonicalTitle":"数学の教科書で敵を殴る，香港発のアクションRPG「The Book of Prosperity」。本業のかたわら7年間，1人で作り続ける開発者に話を聞いた［OIGS2026］","representativeArticleId":"a_39f956139c98f8b034761628","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"The Book of Prosperity\"],\"studios\":[],\"people\":[\"SingKeys\"],\"type\":\"news\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-04T01:00:00.000Z","lastSeenAt":"2026-10-04T01:00:00.000Z","updatedAt":"2026-10-04T14:28:21.000Z"},"attribution":[{"source":"4Gamer.net","url":"https://www.4gamer.net/games/047/G104753/20261003011/","title":"数学の教科書で敵を殴る，香港発のアクションRPG「The Book of Prosperity」。本業のかたわら7年間，1人で作り続ける開発者に話を聞いた［OIGS2026］"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["The Book of Prosperity"],"studios":[],"people":["SingKeys"],"type":"news","domain":"games","is_roundup":false},"keyFacts":null}