| 2006 June | Established as Join Inc. at Ikebukuro, Toshima-ku, Tokyo. |
|---|---|
| 2008 May | Company name was changed to ONE-UP Inc. |
| 2009 June | Browser game “Browser 3 Kingdoms” was launched. |
| 2010 May | Browser game “Sengoku IXA” was launched. |
| 2010 October | Browser game “Browser Harvest Moon” was launched. |
| 2011 October | Office was relocated to Ginza in Chuo-ku, Tokyo. |
| 2012 March | DFQ Inc. has merged with ONE-UP Inc. |
| 2012 August | Browser game “Megami Engage!” was launched. |
| 2014 March |
Merged with G-mode Co., Ltd. Changed company name to G-MODE Corporation. Moved main office to Shinjuku, Tokyo. |
| 2015 April | A subsidiary by Marvelous Inc. |
| 2015 September |
Moved main office to Shinagawa, Tokyo. |