Massively multiplayer online game
multiplayer video game which is capable of supporting large numbers of players simultaneously
A massively multiplayer online (MMO) game, sometimes referred to as an MMOG, is an online video game with a large number of players to interact in the same online game world. MMOs usually feature a huge, persistent open world, although there are games that differ. These games can be found for most network-capable platforms, including the personal computer, video game console, or smartphones and other mobile devices.
MMOs can enable players to cooperate and compete with each other on a large scale, and sometimes to interact meaningfully with people around the world. They include a variety of gameplay types, representing many video game genres.
History
The most popular type of MMOs, and the subgenre that pioneered the category, is the massively multiplayer online role-playing game (MMORPG), which descended from university mainframe computer MUD and adventure games such as Rogue and Dungeon on the PDP-10. These games predate the commercial gaming industry and the Internet, but still featured persistent worlds and other elements of MMOs still used today.
The first graphical MMO, and a major milestone in the creation of the genre, was the multiplayer flight combat simulation game Air Warrior by Kesmai on the GEnie online service, which first appeared in 1986. Kesmai later added 3D graphics to the game, making it the first 3D MMO.
Commercial MMORPGs gained acceptance in the late 1980s and early 1990s. The genre was pioneered by the GemStone series on GEnie, also created by Kesmai, and Neverwinter Nights, the first such game to include graphics, which debuted on AOL in 1991.
“Massively multiplayer online game” enters the record as multiplayer video game which is capable of supporting large numbers of players simultaneously. Crown Archives preserves that source wording while asking what Massively, multiplayer and online can confirm, complicate or overturn.
Why this record matters
“Massively multiplayer online game” is worth following because a concise public description often conceals a longer documentary argument. Here, Massively, multiplayer and online provides the most credible route into that argument.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 10, 2026. The linked authority identifier is Q862490. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1986 and 1991.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Massively multiplayer online game”, its source revision and the description used here.
- Expand the search: follow Massively multiplayer online game primary sources, Massively multiplayer online game archive and Massively research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Massively multiplayer online game”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Massively multiplayer online game” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.