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Casvian was a browser-based live service strategy RPG that was published in the Philippines under Cubizone from 2010 until 2011. The game is no longer in operation.

Casvian is known as "Heroes of Gaia" and "Castle of Heroes" in other country versions.

Casvian Philippines started its open beta on January 20, 2010, and ended on February 17, 2010, with a server wipe. It was launched commercially on February 25, 2010.

Cubizone shut the server down on March 18, 2011, citing "license agreement issues".^[1]

1. Casvian Philippines Shut Down Advisory. March 4, 2011 at 3:41 PM. GM Evo. Casvian Philippines website. Retrieved on 2023-11-15.