Chapters
| Plot | Chapter number | Chapter title | Genki distribution | Vodafone live! distribution | Liveware distribution | VGA edition |
| Correctness | #00 | prototype | ||||
| Correctness | #01 | new world order | October 3, 2005 | January 18, 2006 | December 17, 2007 | March 31, 2009 |
| Matchmaker | ❝01 | underground theater | October 3, 2005 | January 18, 2006 | December 17, 2007 | — |
| Placebo | *01 | NAGARE | October 17, 2005 | January 18, 2006 | December 17, 2007 | — |
| Correctness | #02 | good looking guy | November 7, 2005 | March 1, 2006 | December 17, 2007 | — |
| Matchmaker | ❝02 | quiet cradle | December 5, 2005 | March 15, 2006 | December 17, 2007 | — |
| Placebo | *02 | TIGIRI | January 16, 2006 | April 3, 2006 | December 17, 2007 | — |
| Correctness | #03 | boys don’t cry | February 1, 2006 | May 1, 2006 | December 17, 2007 | — |
| Matchmaker | ❝03 | about nighthawk | March 1, 2006 | June 1, 2006 | December 17, 2007 | — |
| Placebo | *03 | YOGORE | April 3, 2006 | July 3, 2006 | December 17, 2007 | — |
| Transmitter | — | digital man | June 1, 2006 | — | December 17, 2007 | — |
| Matchmaker | ❝04 | the lunar orbit | June 19, 2006 | — | December 17, 2007 | — |
| Placebo | *04 | SIZUKU | July 3, 2006 | — | December 17, 2007 | — |
| Correctness | #05 | electride | — | — | December 17, 2007 | — |
| Matchmaker | ❝05 | moon over 25 | — | — | December 17, 2007 | — |
| Placebo | *05 | MISOGI | — | — | December 17, 2007 | — |
Nomenclature
- シルバー事件モバイル25区
- シルバー事件25区
- The Silver Case 25
Notes
- Before its official launch, a demo of シルバー事件25区 appeared at the Tokyo Game Show 2005 on September 17 and 18. Attendees also received a シルバー事件25区 mobile wallpaper, 25th Ward badges, and clear file folders with Takashi Miyamoto artwork.
- In its first distribution run, シルバー事件25区 was available to FOMA P901iTV, P902i, F902i, SO902i, and SH902i cellphones on the NTT Docomo network. It required an i-mode subscription, which was a ¥315 monthly fee, and costed a futher ¥210 to purchase additional chapters. On Vodafone live!, all chapters costed ¥315.
- On August 8, 2006, the distribution of シルバー事件25区 was placed on hold for undisclosed reasons relating to Genki Mobile. It was eventually confirmed as canceled on February 28, 2007 due to expiring licenses. The game later returned on December 17, 2007 under distribution from Liveware Inc.
References
- https://www.dreamnews.jp/press/0000006083/
- https://web.archive.org/web/20060326132740/http://www.grasshopper.co.jp/suda/archives/2005/08/index.html
- https://web.archive.org/web/20070814075225/http://www.grasshopper.co.jp/mt-static/archives/25/index.html
- https://www.dreamnews.jp/press/0000000753/
- https://web.archive.org/web/20070930040150/http://eg.nttpub.co.jp/news/20060202_10.html
- https://web.archive.org/web/20070220055601/http://www.genkimobile.jp/infomation/2007news/news_070126.html
- https://web.archive.org/web/20070423174837/http://genkimobile.jp:80/i_slunchdx/i_lunch/silver25/news.html