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Alvion Co., Ltd. (株式会社アルヴィオン Kabushiki-gaisha Aruvion ) is a Japanese video game and publishing company.
- September 1996 - Alvion formed.
- 1998 - Headquarters founded in Suita, Osaka.
- 2004 - Established ACE, a career preparation school.
- 2005 - Alvion founded Ullucus Ltd.
- 2006 - Relocated to Alvion building of Suita, Osaka. Renamed as Alvion Co., Ltd.
- ChainDive - October 2003
- Poupée Girl DS - December 17, 2009
- Malicious - Winter 2010
- Ullucus Ltd.