These are the games members of the Valar Guild play. Are you a member who plays one of these games? Perhaps you play a different online game and would like to get together with other members? Keeping your gaming info up-to-date allows you to do so.
For posterity, here is a list of games played during previous years, as they were at the beginning of each Games-Site Mass-Update. Sorting has been disabled, but they will display stats of how many played each game and on each platform.