GridGammon offers three types of membership accounts.
Guests accounts allow you to try out GridGammon for free. Guests may play unrated matches against other guests or members. There is no time limit on guest accounts, however guests do not have a rating and do not accumulate experience points.
To register for a guest account, click the "New Account..." button in the GridGammon Connect window, or visit the GridGammon web site.
Members enjoy many exciting GridGammon features not available to guests. All members have a rating and accumulate experience points playing matches (up to 25 points long). Members can also test their skills against a variety of GridGammon robot players, play unlimited matches, leave messages for other members, and participate in member only tournaments.
You can upgrade from a guest to member account at any time, more information about membership rates and how to upgrade can be found on the GridGammon membership page.