A Game Sage, or GS, is a player-volunteer. Game Sages are identified by the letters "[GS]" prefixed to their names.
What is a Game Sage? A Game Sage is a person who is willing to give up leveling, equipment gaining, and running around aimlessly to help the players with the game and help the GM's run events!
If you ever see a Game Sage, make sure to thank them for sacrificing their time!