A multi-user dungeon, also known as a multi-user dimension or multi-user domain, is a multiplayer real-time virtual world, usually text-based or storyboarded. MUDs combine elements of role-playing games, hack and slash, player versus player, interactive fiction, and online chat. Players can read or view descriptions of rooms, objects, other players, and non-player characters, and perform actions in the virtual world that are typically also described. Players typically interact with each other and the world by typing commands that resemble a natural language, as well as using a character typically called an avatar.
A massively multiplayer online role-playing game (MMORPG) is a video game that combines aspects of a role-playing video game and a massively multiplayer online game.
AberMUD was the first popular open source MUD. It was named after the town Aberystwyth, where it was written. The first version was written in B by Alan Cox, Richard Acott, Jim Finnis, and Leon Thrane based at University of Wales, Aberystwyth for an old Honeywell mainframe and opened in 1987.
Simutronics is an American online games company whose products include GemStone IV and DragonRealms. It was founded in 1987 by David Whatley, with husband and wife Tom & Susan Zelinski. The company is located in St. Louis, Missouri. It became part of the Stillfront Group in 2016.
DikuMUD is a multiplayer text-based role-playing game, which is a type of multi-user domain (MUD). It was written in 1990 and 1991 by Sebastian Hammer, Tom Madsen, Katja Nyboe, Michael Seifert, and Hans Henrik Stærfeldt at DIKU —the department of computer science at the University of Copenhagen in Copenhagen, Denmark.
GemStone IV is a multiplayer text-based online role-playing video game produced by Simutronics. Players control characters in a high fantasy game world named "Elanthia". The first playable version of the game was known as GemStone ][ and was launched in April 1988 on GEnie. It was one of the first MMORPGs and is one of the longest running online games still active. Access to the game is subscription-based through its website, with three additional subscriptions levels available, "Premium", "Platinum" and "Shattered", in addition to a free-to-play model introduced in early March 2015.
Player versus player (PvP) is a type of multiplayer interactive conflict within a game between human players. This is often compared to player versus environment (PvE), in which the game itself controls its players' opponents. The terms are most often used in games where both activities exist, particularly MMORPGs, MUDs, and other role-playing video games, to distinguish between gamemodes. PvP can be broadly used to describe any game, or aspect of a game, where players compete against each other. PvP is often controversial when used in role-playing games. In most cases, there are vast differences in abilities between players. PvP can even encourage experienced players to immediately attack and kill inexperienced players. PvP is often referred to as player killing in the cases of games which contain, but do not focus on, such interaction.
An online game is a video game that is either partially or primarily played through the Internet or any other computer network available. Online games are ubiquitous on modern gaming platforms, including PCs, consoles and mobile devices, and span many genres, including first-person shooters, strategy games, and massively multiplayer online role-playing games (MMORPG). In 2019, revenue in the online games segment reached $16.9 billion, with $4.2 billion generated by China and $3.5 billion in the United States. Since the 2010s, a common trend among online games has been to operate them as games as a service, using monetization schemes such as loot boxes and battle passes as purchasable items atop freely-offered games. Unlike purchased retail games, online games have the problem of not being permanently playable, as they require special servers in order to function.
A persistent world or persistent state world (PSW) is a virtual world which, by the definition by Richard Bartle, "continues to exist and develop internally even when there are no people interacting with it". The first virtual worlds were text-based and often called MUDs, but the term is frequently used in relation to massively multiplayer online role-playing games (MMORPGs) and pervasive games. Examples of persistent worlds that exist in video games include Battle Dawn, EVE Online, and Realms of Trinity.
The Realm Online, originally known as The Realm, is a massively multiplayer online role playing game (MMORPG) launched in December 1996 for Windows PC. It was designed in the tradition of graphical MUDs, before the usage of the terms "massively multiplayer" and "MMORPG".
A mob, short for mobile or mobile object, is a computer-controlled non-player character (NPC) in a video game such as an MMORPG or MUD. Depending on context, every and any such character in a game may be considered to be a "mob", or usage of the term may be limited to hostile NPCs and/or NPCs vulnerable to attack.
Permadeath or permanent death is a game mechanic in both tabletop games and video games in which player characters who lose all of their health are considered dead and cannot be used anymore. Depending on the situation, this could require the player to create a new character to continue, or completely restart the game potentially losing nearly all progress made. Other terms include persona death and player death. Some video games offer a hardcore mode that features this mechanic, rather than making it part of the core game.
Bruce Sterling Woodcock is an American computer and video games industry analyst, best known for his work on subscription tracking of massively multiplayer online games via his website MMOGCHART.COM.
Multi-User Dungeon, or MUD, is the first MUD.
The Bartle taxonomy of player types is a classification of video game players (gamers) based on a 1996 paper by Richard Bartle according to their preferred actions within the game. The classification originally described players of multiplayer online games, though now it also refers to players of single-player video games.
The history of massively multiplayer online games spans over thirty years and hundreds of massively multiplayer online games (MMOG) titles. The origin and influence on MMO games stems from MUDs, Dungeons & Dragons (D&D) and earlier social games.
TinyMUCK or, more broadly, a MUCK, is a type of user-extendable online text-based role-playing game, designed for role playing and social interaction. Backronyms like "Multi-User Chat/Created/Computer/Character/Carnal Kingdom" and "Multi-User Construction Kit" are sometimes cited, but are not the actual origin of the term; "muck" is simply a play on the term MUD.
Realm versus Realm (RvR) is a type of player versus player (PvP) gameplay in massively multiplayer online role-playing games (MMORPGs) where the player base is divided over multiple preset realms that fight each other over game assets. This differs from normal Player versus Player combat in that Realm versus Realm usually involves a combat-based game, as opposed to one where sporadic Player versus Player combat occurs. In this context, "realm" generally means a geographic territory or political affiliation.
Designing Virtual Worlds is a book about the practice of virtual world development by Richard Bartle. It has been noted as an authoritative source regarding the history of world-based online games. College courses have been taught using it.
Avalon: The Legend Lives is a text-based online multi-player role-playing game world that was first released on 28 October 1989 at the gaming convention Adventure 89. It has maintained a near-continuous on-line presence with consistent and intact persona files and player history since the late 1980s. Until regular outages began occurring in 2023, it was the longest continuously running online role-playing game in history.
