Ludoteka offers a several features related to each specific player, such as game history, lists of favorite players and games, messaging system, etc ... Therefore, you should have an user account. Signing up is very easy and fast. You just have to tell us the nickname you want to play with in Ludoteka, a password and a valid email. You can leave the email for later, but some functions will be disabled while it is not validated.
If you have a Gmail or Facebook account, you can also sign up by directly linking it to Ludoteka.