MagiQuest Online (MQ Online) is an online version of the MagiQuest LARP game. It is created by Cyan Worlds, the creators of Myst. Currently only available for Microsoft Windows, MQ Online may be downloaded from the MagiQuest website. MQ Online is sold in chapters; as of October, 2010 only the first chapter is available. While the game has a free trial mode, each "chapter" must be purchased individually per player account. Players who complete chapter one online may access an additional quest, the silver dragon, at some MagiQuest locations.
Source: Wikipedia, "MagiQuest Online", available under the CC-BY-SA License.