Pax Softnica

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Pax Softnica (パックスソフトニカ株式会社; originally written "Pax Softonica") published and developed computer games in its early years, but later worked on many games for Nintendo. It was originally Imagesoft. [1] From Oh!FM-7: "It seems that Imagesoft was originally a mail order store specializing in software, but started producing software in-house as well. After that, it was absorbed by Pax Electronica Japan, which manufactured and sold PC peripherals, and Pax Softnica was established in October 1983." (Programmer and former president Tomoshige Hashishita's profile says it was established in August. [2])

Research Methods: Actual mentions, online resources, shared staff

As Imagesoft

Apple II

  • Crazy Climber / Mad Climber (JP Publisher: Imagesoft) [Yukio Tamura] [3]
  • Ocean (JP Publisher: Imagesoft)
  • Space Gals (JP Publisher: Imagesoft) [4]


  • Enterprise (JP Publisher: Imagesoft) [B.T.]
  • Tri-Dantal (JP Publisher: Imagesoft) [Y. Takeshita]


  • Amazon-gawa Tanken (JP Publisher: Imagesoft) [T. Katayama]
  • Igo Joseki 100 Master (JP Publisher: Imagesoft)
  • Mad Blaster (JP Publisher: Imagesoft)
  • Miyuki in Meiro (JP Publisher: Imagesoft) [5]
  • Miyuki the Shoubushi (JP Publisher: Imagesoft)
  • Rommel Sensha Gundan (JP Publisher: Imagesoft)
  • Slender Island (JP Publisher: Imagesoft) [Onitama/Onion Software]
  • Star Trek (JP Publisher: Imagesoft)
  • The Card (JP Publisher: Imagesoft)
  • Ultra Mahjong (JP Publisher: Imagesoft)
  • 英単熟語集(高校受験用)
  • 英単熟語集(大学受験用)
  • 英文法練習(高校受験用)
  • 英文法練習(大学受験用)


  • B52 Bakugeki Sakusen (JP Publisher: Imagesoft)
  • Leningrad Kyoushuu Sakusen (JP Publisher: Imagesoft)

Twitter thread documenting Imagesoft ads in the Japanese computer magazine I/O

As Pax Softonica/Pax Softnica


  • Ginga no Sannin (programming, sound) (JP Publisher: Nintendo)
Programmed by Pax Softnica, according to game designer Makoto Kuba [6]
  • Hello Kitty World (JP Publisher: Character Soft)
  • Hokkaido Rensa Satsujin: Okhotsk ni Kiyu (JP Publisher: Login Soft)
  • Ice Hockey (programming, etc.) (US/CA/EU/AS Publisher: Nintendo)
  • Mother (JP Publisher: Nintendo)
?: Ape, Ishel Artvision
  • Penguin-kun Wars (JP Publisher: ASCII)
  • Super Dyna'mix Badminton (JP Publisher: VAP)
  • Super Real Baseball '88 (JP Publisher: VAP)
  • Tao (JP Publisher: VAP)
  • Volleyball (US Publisher: Nintendo)
The US copyright registration lists Pax Electronica Japan as the author.

Famicom Disk System

  • Famicom Mukashi Banashi: Shin Onigashima: Kouhen (JP Publisher: Nintendo)
  • Famicom Mukashi Banashi: Shin Onigashima: Zenpen (JP Publisher: Nintendo)
  • Famicom Mukashi Banashi: Yuuyuuki: Kouhen (JP Publisher: Nintendo)
  • Famicom Mukashi Banashi: Yuuyuuki: Zenpen (JP Publisher: Nintendo)
  • Ice Hockey (programming, etc.) (JP Publisher: Nintendo)
  • Time Twist: Rekishi no Katasumi de...: Kouhen (JP Publisher: Nintendo)
  • Time Twist: Rekishi no Katasumi de...: Zenpen (JP Publisher: Nintendo)
  • Volleyball (JP Publisher: Nintendo)
  • Vs. Excitebike (JP Publisher: Nintendo)

Game Boy

  • Balloon Kid (programming) (US Publisher: Nintendo)
  • Donkey Kong (JP/US/EU Publisher: Nintendo)
  • Moguranya / Mole Mania (JP/US Publisher: Nintendo)
  • Radar Mission (JP/US Publisher: Nintendo)
  • Top Rank Tennis / Top Ranking Tennis (programming, sound?) (US/EU Publisher: Nintendo)
  • Wave Race (US/EU Publisher: Nintendo)

Game Boy Advance

  • Mother 1+2 (JP Publisher: Nintendo)
The sole author listed on the US copyright registration
  • Tottoko Hamtaro 3: Love Love Daibouken Dechu / Hamtaro: Ham-Ham Heartbreak (JP/US/EU Publisher: Nintendo)

Game Boy Color

  • Balloon Fight GB (programming) (JP Publisher: Nintendo)
  • Star Wars Episode I: Racer (co-developer) (US/EU Publisher: Nintendo)
  • Tottoko Hamtaro 2: Hamchans Daishuugou Dechu / Hamtaro: Ham-Hams Unite! (JP/US/EU Publisher: Nintendo)
  • Tottoko Hamtaro: Tomodachi Daisakusen Dechu (JP Publisher: Nintendo)

Nintendo 64

  • Jungle Taitei / Jungle Emperor Leo (unreleased) (Nintendo)
  • Itoi Shigesato no Bass Tsuri No. 1 Ketteiban! (programming?) (JP Publisher: Nintendo)
  • Pokémon Snap (some programming?) (JP/US/AU/EU Publisher: Nintendo)

Super Famicom/Super NES

  • Hajimari no Mori (JP Publisher: Nintendo)
  • Heisei Shin Onigashima: Kouhen (JP Publisher: Nintendo)
  • Heisei Shin Onigashima: Zenpen (JP Publisher: Nintendo)
  • Konae-chan no Doki Doki Penguin Kazoku [Satellaview] (JP Publisher: Nintendo)
  • Motoko-chan no Wonder Kitchen (JP Publisher: Ajinomoto)
  • Snoopy Concert (JP Publisher: Mitsui Fudosan)
  • Super NES Super Scope 6 (co-developer) (JP/US Publisher: Nintendo)
NCL, NOA, Intelligent Systems, Pax Softnica, and TEC are listed as authors on the US copyright registration.
  • Wrecking Crew '98 (JP Publisher: Nintendo)