{"rewrite":{"id":"r_1188ae30b23841a8e61fac6b","clusterId":"c_7afec8b34ddb539709fa95b4","slug":"sephiria-dev-details-inventory-system-and-the-cost-of-multiplayer","model":"deepseek-v4-1-flash","headline":"Sephiria Dev Details Inventory System And The Cost Of Multiplayer","summary":"TEAM HORAY's Taehyun Ahn gave a mini-interview about Sephiria, the roguelite action RPG the studio released for PC and Mac on July 31. He traces the inventory system to the accessory items in the studio's earlier game Dungreed and to placement mechanics in Noita and Diablo II, and says adding multiplayer to a design first built for single-player was an unimaginable amount of work.","whyItMatters":"The interview is the studio's own account of how a placement-driven inventory design moved from Dungreed's accessory items into Sephiria, and of the cost that came with bolting multiplayer onto a design planned around one player.","webCardHtml":"\u003cp\u003eSephiria ships as a top-down roguelite in which players take the role of a rabbit defending its homeland, with six weapon types, more than 200 upgrades, and roughly 300 kinds of artifacts and stone tablets to slot into an inventory box. It supports up to four-player online co-op and Japanese language, and sells for 1,980 yen.\u003c/p\u003e\u003cp\u003eTaehyun Ahn, who leads TEAM HORAY, says the design began as single-player. He credits the accessory items from Dungreed and the placement mechanics of Noita and Diablo II as the sources the team drew on, and describes the multiplayer addition as an unimaginable amount of work.\u003c/p\u003e","blueskyPost":"Sephiria's multiplayer arrived after a single-player design was locked, and its inventory system traces to Dungreed's accessories plus Noita and Diablo II placement. TEAM HORAY's own backlog defined its next game's rules.","twitterPost":"Sephiria's inventory pulls from Dungreed, Noita, and Diablo II. TEAM HORAY's multiplayer retrofit was the expensive part, not the design.","threadsPost":"Sephiria's inventory system traces to accessory items in TEAM HORAY's earlier Dungreed and to placement mechanics in Noita and Diablo II. Adding multiplayer to a design first built for single-player, as Taehyun Ahn describes it, was the costly expansion.","newsletterBlurb":"TEAM HORAY's Taehyun Ahn discussed Sephiria in a mini-interview, tracing its inventory system to Dungreed's accessory items and to placement mechanics in Noita and Diablo II. The game released for PC and Mac on July 31, supports up to four-player online co-op, and costs 1,980 yen. He called multiplayer the hardest part of the build.","attributionJson":"[{\"source\":\"Game Spark\",\"url\":\"http://www.gamespark.jp/article/2026/10/07/173290.html\",\"title\":\"Interview: Roguelite Action RPG \\\"Sephiria\\\" Developer - \\\"Originally Designed as Single-Player. Adding Multiplayer Was an Unimaginable Amount of Work\\\"\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4729,"outputTokens":630,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1791367629,"createdAt":"2026-10-07T10:03:38.000Z","publishedAt":"2026-10-07T10:06:06.000Z","updatedAt":"2026-10-07T10:06:06.000Z"},"cluster":{"id":"c_7afec8b34ddb539709fa95b4","canonicalTitle":"「当初はシングルプレイヤー用としてデザイン。マルチプレイ対応は想像を絶する作業量に」ローグライトアクションRPG『セフィリア』【開発者インタビュー】","representativeArticleId":"a_5c42d02b2c13e0e7f4fd20ad","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Sephiria\"],\"studios\":[\"TEAM HORAY\"],\"people\":[],\"type\":\"news\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-07T08:30:03.000Z","lastSeenAt":"2026-10-07T08:30:03.000Z","updatedAt":"2026-10-07T10:06:06.000Z"},"attribution":[{"source":"Game Spark","url":"http://www.gamespark.jp/article/2026/10/07/173290.html","title":"「当初はシングルプレイヤー用としてデザイン。マルチプレイ対応は想像を絶する作業量に」ローグライトアクションRPG『セフィリア』【開発者インタビュー】"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Sephiria"],"studios":["TEAM HORAY"],"people":[],"type":"news","domain":"games","is_roundup":false},"keyFacts":null}