Multiplayer

Due to their popularity, the games were frequently banned by the University's Computer Services since they could easily take up all available RAM and cycles.

Digital Equipment Corporation soon distributed another multi-user version of Star Trek called Decwars though not featuring real-time screen updating. Decwars was widely distributed to universities with DECsystem-10s.

MIDI Maze was an early first-person shooter released in 1987 for the Atari ST. It was unique in featuring network multiplayer through the MIDI interface long before mainstream Ethernet and Internet play became commonplace. It is considered the first multiplayer 3D shooter on a mainstream system and the first major network multiplayer action game, with support for as many as 16 players. It was followed up by ports to various platforms in 1991 under the title Faceball 2000, including the Game Boy and Super NES, making it possibly the first handheld and multiplatform first-person shooter and an early console example of the genre.

In modern computer games, the word multiplayer usually implies that the players play together by connecting multiple computers via a network, usually either a LAN or the Internet. This form of multiplayer is sometimes called "netplay" to refine the meaning. The first popular videogaming title to release a LAN version was Doom in 1993, when the first network version of the game allowed a total of four simultaneous gamers. Playing networked multiplayer games via LAN often eliminates problems common in Internet play, such as lag and anonymity of players. As a result, multiplayer games usually are the focus of LAN parties. Play-by-email games are multiplayer games that use email as the method of communication between computers. Other turn-based variations which do not require players to be online at the same time are Play-by-post gaming and Play-by-Internet. Some online games are "massively multiplayer" games, which means that a large number of players participate simultaneously. The two major genres are MMORPG (massively multiplayer online role-playing game) such as World of Warcraft or EverQuest and MMORTS (massively multiplayer online real-time strategy).

Gamers often refer to latency by the term ping, which measures round-trip network communication delays (by the use of ICMP packets). For example, a player on a DSL connection with a 50 ms "ping" will be able to react faster to game events than a modem user with 350 ms average latency. Another popular complaint is packet loss and choke, which can render a player unable to "register" their actions with the server. In first-person shooters, this problem usually manifests itself in the problem of bullets appearing to hit the enemy, but the enemy taking no damage. Note that the player's connection is not the only factor; the entire network path to the server is relevant, and some servers are slower than others. While latency is frequently complained about, many players believe a lack of finesse and decent tactics is more damaging than a slow connection in most games. Major and frequent variations in latency, however, can be another story; these can make it very difficult to properly play the game.

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