NAGI-P SOFT is a software house run by Akihiko Kusanagi (@nagix). We are currently focusing on development of smartphone applications.

Our History

NAGI-P SOFT is based in Tokyo, and was established in 1989 by Akihiko Kusanagi, who was 13 years old at that time. In the early days, we had mainly developed game software for the 8-bit compuler, MSX. Our software programs used to be released in the monthly magazine "MSX-FAN" published by Tokuma Shoten (which was discontinued in 1995), and a total of 9 programs have been published during 1989 to 1991. The activity of NAGI-P SOFT was temporarily suspended in 1991.

In 1996, we resumed our work. We started to develop freeware and shareware for Macintosh and Windows, and they have been distributed through the commercial BBS service, NIFTY-Serve in the beginning and through our own web site afterward. Since they ware often included in CD-ROMs bundled with computer magazines and localized for multiple languages, a number of users around the world enjoyed the games and used the utilities.

In 2001, we started to deliver the mobile Java games. NS-TOWER and NS-SHAFT are quite popular all over the world. We just started to develop smartphone apps in 2013.

Our representative work

  • NS-TOWER (Mac/Windows/Mobile Java/MSX)
  • NS-SHAFT (Mac/Windows/Mobile Java)
  • LASTWAR (Mac/Windows/MSX)
  • Yamato Menu (Mac)
  • ShockPrice 500 series(Mac/Windows, SME Intermedia)
  • Aleck Bordon Adventure Tower & Shaft (Gameboy Advance/Arcade, Aruze)


If you need any support, or have any question, feedback, suggestion, request for interviews or permission for publication, you can use the form below to contact us.



A software house based in Tokyo. We are developing smartphone games such as NS-TOWER and NS-SHAFT.
Tokyo, Japan
rgov Whoa, NS-SHAFT finally got an iOS port. Nostalgia. itunes.apple.com/us/app/id62372…

Retweeted Monday, 22 September 2014 via Twitter for iPhone • 1 retweet

les Old school Mac gamers: NS-Shaft is back! appsto.re/i6657x6

Retweeted Wednesday, 16 April 2014 via Twitter for iPhone • 1 retweet

nagi_p Released NS-SHAFT for iOS version 1.1.4, an action game about diving deeper into the shaft. Added support for iOS 7. nagi-p.com/en/news/30-ns-…

Monday, 02 December 2013 via Twitter for Websites