Vivarium

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Vivarium (ビバリウム) is a Japanese game developer founded by former OPeNBooK9003 employees. Though they developed The Tower SP, wehther or not they bought OPeNBooK9003 (by then renamed Cironix) is unknown (some sources say yes).

Softography

Dreamcast

• Seaman (1999)
• Christmas Seaman (1999)
• Seaman: Kindan no Pet: 2001 Nen Taiouban (2000)

Game Boy Advance

• The Tower SP (2005)