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Wyvern is a 2-dimensional Graphical MUD / MMORPG game which was released for public play on February 4 , 2001 by creator Steve Yegge through his company Cabochon Inc. .
 Steve Yegge
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Steve Yegge