Thunderstone Japan

Thunderstone,JAPAN Ltd. (有限会社サンダーストン・ジャパン)

Was part of the Soliton Software group. Several of the company's programmers appear to have joined Treasure around 2003.

Dreamcast

• Kaen Seibo: The Virgin on Megiddo (programming) (JP Publisher: Kobi)

Production: Studio Line

• Sakura Taisen 2: Kimi, Shinitamou koto Nakare (co-developed with Ea) (JP Publisher: Sega)

Production: Red Company, Overworks; Sound: T's Music, Wave Master

• SeGaGaGa (JP Publisher: Sega)

Production: Hitmaker; Some Music: Az Game

• Shenmue: Isshou Yokosuka / Shenmue / US Shenmue (some programming?) (JP/US/EU Publisher: Sega)

PlayStation

• Mobile Suit Gundam: Giren no Yabou - Zeon no Keifu (some programming) (JP Publisher: Bandai)

Developer: BEC

• Wizardry: Llylgamyn Saga (sound effects) (JP Publisher: Locus)
• Wizardry: New Age of Llylgamyn (programming, sound effects) (JP Publisher: Locus)

PlayStation 2

• Fushigi no Umi no Nadia: Inherit the Blue Water (programming) (JP Publisher: GeneX)
• Lupin Sansei: Majutsuou no Isan / Lupin the 3rd: Treasure of the Sorcerer King / Le avventure di "Lupin III": Il Tesoro del Re Stregone (co-developed with Ea) (JP Publisher: Banpresto; US Publisher: Bandai; FR Publisher: 505 GameStreet)

Production: Banpresoft; Planning Support: Game Mentat; Some 3D Modeling: ZERO-1; Opening Movie: Momo, Laser

• Shine: Kotoba o Tsumuide (programming) (JP Publisher: Success)

Saturn

• Nemesis: The Wizardry Adventure (JP Publisher: Shouei System)
• Wizardry: Llylgamyn Saga (JP Publisher: Locus)

Windows

• r.p.m.: Hitomi no Naka no Omoide (JP Publisher: e-Electriciteit)
• Seikai no Senki (programming) (JP Publisher: Gainax)