Wikipedia:Articles for deletion/Adventurers Guild
It sounds essentially like a long running role-playing campaign.  Unless people other than the players are involved enough in it to generate reliable third-party commentary, it would appear to fail both notability and verifiability.  The length of the campaign is not really an issue; I have D&D characters I have played intermittently, through many variations in the rules, for more than 20 years.  Don't tempt me to start an encyclopedia article about Saint Borage or Colpalgia the Short-Tempered.  FWIW,  A7 provides for speedy deletion of "(a)n article about a real person, group of people, band, club, company, or web content that does not assert the importance or significance of its subject," and this comes close
— User:Ihcoyc, 14:10, 23 May 2007 (UTC)
Stance: delete
Cited policy: WP:CSD (Wikipedia:Criteria for speedy deletion)