KnowraMassively multiplayer online gameLinked fromLinked fromThe 10 pages that link to Massively multiplayer online game, each with the reason it gives.All 10Broader topic 6Narrower topic 3Compared with 1Free-to-playNarrower topic: Persistent worlds can support ongoing sales of subscriptions, cosmetics, and expansions.Massively multiplayer online role-playing gameNarrower topic: MMORPGs are role-playing-focused members of this broader online-game form.Dungeon Fighter OnlineNarrower topic: The game layers social and long-term online systems over beat ’em up combat.