A Jagex account is an account that a player has with Jagex with which the player accesses Jagex games. A single account can be used for RuneScape, FunOrb, War of Legends, and confirmed by Mark Gerhard the same was to happen with MechScape and will happen to StellarDawn Each account keeps track of progress made in-game, such as skills and quests in RuneScape or highscores and achievements in FunOrb.
An account is accessed with a username which everyone sees when you're in the same area/lobby as them and a password which must be kept secret. It is against Rule 6 to share, trade, buy, sell, or give away accounts. Doing so could result in the account being banned.
An account can be a member or a non-member on a specific game. If the account is a member that account will have access to more of the game. Membership must be bought separately for each game. See member for more details.
Each player needs to choose his/her race: Human, Pliigi, Mortiga or another (yet to be revealed) race.