# Master Project \- 《Custom Song Library》

Summer DB entity ID: 69d85851\-5f20\-450b\-9f08\-e997d3034181

Steam App ID: 783580

You can import beatmaps\(\.yhz\) you made or shared from others to "Rhythm World \- Master Project" after you purchasing this DLC\.  And you will get a free "Rhythm Map Editor"\.  And in order to make music game lover more choice, we support \.osz file friendly in our "Rhythm Map Editor"\.

## Game information

- Type: dlc

- Developer: Extra Dimension

- Publisher: Extra Dimension

- Release date: Jan 19, 2018

- Coming soon: false

- Free to play: false

- Parent Steam app: 705150

- Genres: Casual, Indie, Simulation

- Categories: Single\-player, Downloadable Content, Full controller support, Family Sharing

- Platforms: windows

- Website: Not collected

- Screenshots: https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/783580/ss\_3e6e00206c5b9be49891883a340fbb1c6e547300\.1920x1080\.jpg?t=1520857835, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/783580/ss\_d61efc0ec07f26751482f4b97700ed04f8eb66ea\.1920x1080\.jpg?t=1520857835, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/783580/ss\_1159b28a14207e93b140670bb97eb0af15262e07\.1920x1080\.jpg?t=1520857835, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/783580/ss\_be5f9f8cf42ea419536170a117181cf86cd02063\.1920x1080\.jpg?t=1520857835, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/783580/ss\_38015807c3fd306fce1990caf6e2f5ceb6fe2e7e\.1920x1080\.jpg?t=1520857835, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/783580/ss\_951afe8c419cfa4b61627ebebad8d25244688429\.1920x1080\.jpg?t=1520857835

- Price: 599 minor units USD; discount 0%

- Price country: US

## Observed metrics

- Current players: Not collected

- Steam review count: 1

- Steam positive reviews: 1

- Steam negative reviews: 0

- Steam positive percentage: 100%

- Summer DB rating: No native votes

Review filters: \{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}

## Player history

[Seven-day chart data as Markdown](/api/v1/entities/69d85851-5f20-450b-9f08-e997d3034181/player-metrics?days=7&format=markdown) · [JSON](/api/v1/entities/69d85851-5f20-450b-9f08-e997d3034181/player-metrics?days=7)

Chart values are hourly observed maxima. The sampled 24-hour peak and missing intervals carry explicit coverage; history before collection is unknown.

## Sources and freshness

- Catalog membership: store\_catalog

- Catalog observed: 2026\-09\-28T16:58:32\.455488\+00:00

- Details observed: 2026\-09\-23T08:13:17\.136494\+00:00

- Player count observed: Not collected

- Reviews observed: 2026\-09\-23T08:13:20\.157737\+00:00

Full provenance: \{"urls":\{"price":"https://store\.steampowered\.com/app/783580/","catalog":"https://api\.steampowered\.com/IStoreService/GetAppList/v1/","details":"https://store\.steampowered\.com/app/783580/","players":null,"reviews":"https://store\.steampowered\.com/appreviews/783580"\},"price":"2026\-09\-23T08:13:17\.136494\+00:00","source":"steam","catalog":"2026\-09\-28T16:58:32\.455488\+00:00","country":"US","details":"2026\-09\-23T08:13:17\.136494\+00:00","players":null,"reviews":"2026\-09\-23T08:13:20\.157737\+00:00","language":"en","editorial":null,"membership":"store\_catalog","observations":\{"price":"1ad78b02\-81b3\-4b04\-9cfa\-2f3c1db741df","catalog":"b4ae35dc\-c383\-4a27\-b4d4\-687a0bad25fb","details":"1aecd5cd\-93d2\-410b\-9fac\-e17e1606730a","players":null,"reviews":"5637a1c1\-fe7a\-4ef2\-b29b\-51b5e8644cbb"\},"reviewFilters":\{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}\}

Native rating methodology: \{"count":0,"average":null,"entityId":"69d85851\-5f20\-450b\-9f08\-e997d3034181","revision":0,"observedAt":null,"methodology":"arithmetic\-v1","distribution":\[0,0,0,0,0,0,0,0,0,0\]\}

Steam reviews are not Summer DB votes. Missing data is not zero. Player counts are observations, not historical peaks. A supplemental record does not establish that a game was delisted.

[Steam store](https://store.steampowered.com/app/783580/) · [JSON](/api/v1/games/69d85851-5f20-450b-9f08-e997d3034181)