This is a selected list of massively multiplayer online first-person shooter games.
MMOFPSs are large multi-user games that take place in perpetual online worlds with hundreds or thousands of other players.
"Hellgate: London can be played offline or online without a fee."
MMOFPSs today use a wide range of business models, from completely free of charge (no strings attached) or advertise funded to various kinds of payment plans.
This list uses the following terms.