{"rewrite":{"id":"r_73d274ef8657fac134373e6d","clusterId":"c_29d70c051a8fac30287b6ca8","slug":"cozy-marbles-marble-rolling-great-adventure-gets-august-21-release-date","model":"deepseek-v4-flash","headline":"Cozy Marbles: Marble Rolling Great Adventure Gets August 21 Release Date","summary":"Publisher Mythwright and solo developer Pixel Pea Games announced on July 17 that the PC sandbox game Cozy Marbles: Marble Rolling Great Adventure will launch on Steam on August 21, 2026. The game is priced at 1,200 yen with a 10% launch discount. It is a marble run simulator where players build courses using a variety of parts including slopes, spirals, cannons, portals, laser tunnels, and anti-gravity fields. Players can also add xylophone blocks that play melodies, boosters for speed, and customize marbles with colors, expressions, and hats. The game includes a workbench with limited starting parts; completing challenges unlocks more parts and environments such as a fairy tale world and a space station. A demo is available now. Created courses can be shared via Steam Workshop, and the game supports Twitch integration, allowing viewers to drop marbles into courses during streams. The developer, Tim, is a solo developer based in Berlin and a co-founder of Kolibri Games, known for Idle Miner Tycoon. This is Pixel Pea Games' debut title.","whyItMatters":"Cozy Marbles is a notably deep sandbox dedicated entirely to marble run creation, with unlockable parts like warp portals and anti-gravity fields, a Twitch integration feature, and a solo developer background, making it a niche but ambitious debut.","webCardHtml":"\u003cp\u003eThe developer behind Cozy Marbles, Tim, previously co-founded Kolibri Games, the studio behind the mobile hit Idle Miner Tycoon. This is his first release under the Pixel Pea Games label. The sandbox game offers a lo-fi soundtrack to help players focus while building courses on a workbench. Initially, only a limited set of parts is available; players must complete challenges based on object count or marble launches to earn tickets that unlock additional parts and environments. Unlockable parts include warp portals that allow impossible physics, cannons, and race-launching parts that fire multiple marbles at once. Environments range from a fairy tale world to a space station, each providing a different aesthetic for course creation. Marble customization lets players change faces, patterns, and accessories. The Twitch integration lets viewers compete by dropping marbles into the course via chat, adding a live interactive element. The demo currently available on Steam gives a taste of the early progression.\u003c/p\u003e","blueskyPost":"Remember those satisfying marble run videos? Cozy Marbles is a sandbox game for making your own, complete with cannons, portals, and xylophone rails. Out August 21 on Steam.","twitterPost":"Solo dev Tim (co-founder of Idle Miner Tycoon) releases debut game Cozy Marbles, a marble run sandbox with warp portals and Twitch chat integration. Launching Aug 21 on Steam.","threadsPost":null,"newsletterBlurb":"Cozy Marbles: Marble Rolling Great Adventure is a PC sandbox game dedicated to building marble runs with a wide variety of parts, from simple slopes to warp portals and anti-gravity fields. The game launches on Steam on August 21 for 1,200 yen, with a 10% launch discount. It supports Steam Workshop sharing and Twitch integration, allowing viewers to interact with courses.","attributionJson":"[{\"source\":\"4Gamer.net\",\"url\":\"https://www.4gamer.net/games/016/G101635/20260717008/\",\"title\":\"Cozy Marbles ビー玉コロコロ大作戦, a simulator for freely assembling and playing with marble run toys, to be released on August 21\"},{\"source\":\"Automaton\",\"url\":\"https://automaton-media.com/articles/newsjp/20260717-455517/\",\"title\":\"Marbles Coaster Creation Sandbox 'Cozy Marbles: Marble Rolling Great Adventure' to Release on August 21. From 'That Thing You See in Short Videos' to Warp Portals, an Overly Free Marble-Specific Game\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":5421,"outputTokens":2472,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1784273986,"createdAt":"2026-07-17T07:36:40.000Z","publishedAt":"2026-07-17T07:37:28.000Z","updatedAt":"2026-07-17T07:36:40.000Z"},"cluster":{"id":"c_29d70c051a8fac30287b6ca8","canonicalTitle":"ビー玉コースター作成サンドボックス『Cozy Marbles ビー玉コロコロ大作戦』8月21日発売へ。“ショート動画で見るやつ”からワープポータルまで、自由すぎるビー玉特化ゲーム","representativeArticleId":"a_78925ba8a17b613fe123f146","sourceCount":2,"writtenSourceCount":2,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[\"Cozy Marbles ビー玉コロコロ大作戦\"],\"studios\":[\"Mythwright\",\"Pixel Pea Games\"],\"people\":[],\"type\":\"announcement\",\"domain\":\"games\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-07-17T04:01:56.000Z","lastSeenAt":"2026-07-17T04:27:23.000Z","updatedAt":"2026-07-17T07:37:29.000Z"},"attribution":[{"source":"4Gamer.net","url":"https://www.4gamer.net/games/016/G101635/20260717008/","title":"ビー玉を転がすおもちゃ「マーブルラン」を自由に組み立てて遊べるシミュレーター「Cozy Marbles ビー玉コロコロ大作戦」，8月21日に発売"},{"source":"Automaton","url":"https://automaton-media.com/articles/newsjp/20260717-455517/","title":"ビー玉コースター作成サンドボックス『Cozy Marbles ビー玉コロコロ大作戦』8月21日発売へ。“ショート動画で見るやつ”からワープポータルまで、自由すぎるビー玉特化ゲーム"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":["Cozy Marbles ビー玉コロコロ大作戦"],"studios":["Mythwright","Pixel Pea Games"],"people":[],"type":"announcement","domain":"games","is_roundup":false},"keyFacts":["Cozy Marbles: Marble Rolling Great Adventure will release on Steam on August 21, 2026.","The game is priced at 1,200 yen (about $8 USD) with a 10% launch discount.","The developer is solo developer Tim of Pixel Pea Games, based in Berlin, Germany.","The game includes unlockable parts such as warp portals, cannons, laser tunnels, and anti-gravity fields.","Twitch integration allows viewers to drop marbles into courses via chat during streams."]}