Role-playing video game in the context of Game mechanics

Interactive fiction (IF) is software simulating environments in which players use text commands to control characters and influence the environment. Works in this form can be understood as literary narratives, either in the form of Interactive narratives or Interactive narrations. These works can also be understood as a form of video game, either in the form of an adventure game or role-playing game. In common usage, the term refers to text adventures, a type of adventure game where the entire interface can be "text-only", however, graphical text adventure games, where the text is accompanied by graphics (still images, animations or video) still fall under the text adventure category if the main way to interact with the game is by typing text. Some users of the term distinguish between interactive fiction, known as "Puzzle-free", that focuses on narrative, and "text adventures" that focus on puzzles.

Due to their text-only nature, they sidestepped the problem of writing for widely divergent graphics architectures. This feature meant that interactive fiction games were easily ported across all the popular platforms at the time, including CP/M (not known for gaming or strong graphics capabilities). The number of interactive fiction works is increasing steadily as new ones are produced by an online community, using freely available development systems .

Multiplayer online battle arena (MOBA) is a subgenre of strategy video games in which two teams of players compete on a structured battlefield, each controlling a single character with distinctive abilities that grow stronger as the match progresses. The objective is to destroy the enemy team's main structure while defending one's own. In some MOBA games, the objective can be defeating every player on the enemy team. Matches emphasize team coordination, tactical choices, and real-time combat. Players are assisted by computer-controlled units that periodically spawn in groups and march along set paths toward their enemy's base, which is heavily guarded by defensive structures. Players can influence these units by eliminating enemy waves or supporting their own, affecting lane control and map pressure. This type of multiplayer online video games originated as a subgenre of real-time strategy (RTS); however, most of the traditional RTS elements, such as building construction and unit production, were removed in favor of a more focused player-versus-player experience. The genre blends elements of real-time strategy, role-playing, and action games, combining strategic depth with individual character progression and fast-paced combat.

The first widely accepted game in the genre was Aeon of Strife (AoS), a fan-made custom map released in 2002 for StarCraft, in which four players each control a single powerful unit and, aided by weak computer-controlled units, compete against a stronger computer. Defense of the Ancients (DotA) was created in 2003 by the Warcraft III modding community for Warcraft III: Reign of Chaos and its expansion, The Frozen Throne, with a map based on AoS. DotA was one of the first major titles to establish the core mechanics of the MOBA genre, serving as a direct inspiration for later titles, and the first MOBA for which sponsored tournaments were held. It was followed by two spiritual successors, League of Legends (2009) and Heroes of Newerth (2010), a standalone sequel, Dota 2 (2013), and other games in the genre, including Smite (2014) and Heroes of the Storm (2015).

Dungeons & Dragons (commonly abbreviated as D&D or DnD) is a fantasy tabletop role-playing game (TTRPG) originally created and designed by Gary Gygax and Dave Arneson. The game was first published in 1974 by Tactical Studies Rules (TSR). It has been published by Wizards of the Coast, later a subsidiary of Hasbro, since 1997. The game was derived from miniature wargames, with a variation of the 1971 game Chainmail serving as the initial rule system. D&D's publication is commonly recognized as the beginning of modern role-playing games and the role-playing game industry, which also deeply influenced video games, especially the role-playing video game genre.

D&D departs from traditional wargaming by allowing each player to create their own character to play instead of a military formation. These characters embark upon adventures within a fantasy setting. A Dungeon Master (DM) serves as referee and storyteller for the game, while maintaining the setting in which the adventures occur, and playing the role of the inhabitants of the game world, known as non-player characters (NPCs). The characters form a party and they interact with the setting's inhabitants and each other. Together they solve problems, engage in battles, explore, and gather treasure and knowledge. In the process, player characters earn experience points (XP) to level up, and become increasingly powerful over a series of separate gaming sessions. Players choose a class when they create their character, which gives them special perks and abilities every few levels.

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.

As in role-playing games (RPGs), the player assumes the role of a character (often in a fantasy world or science-fiction world) and takes control over many of that character's actions. MMORPGs are distinguished from single-player or small multi-player online RPGs by the number of players able to interact together, and by the game's persistent world (usually hosted by the game's publisher), which continues to exist and evolve while the player is offline and away from the game.

Paper-and-pencil games or paper-and-pen games (or some variation on those terms) are games that can be played solely with paper and pencils (or other writing implements), usually without erasing. They may be played to pass the time, as icebreakers, or for brain training. In recent times, they have been supplanted by mobile games. Some popular examples of pencil-and-paper games include tic-tac-toe, sprouts, dots and boxes, hangman, MASH, paper soccer, and spellbinder. The term is unrelated to the use in role-playing games to differentiate tabletop games from role-playing video games.

Board games where pieces are never moved or removed from the board once being played, particularly abstract strategy games like Gomoku and Connect Four, can also be played as pencil-and-paper games.

A multi-user dungeon (MUD, /mʌd/), 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.

Traditional MUDs implement a role-playing video game set in a fantasy world populated by fictional races and monsters, with players choosing classes in order to gain specific skills or powers. The objective of this sort of game is to slay monsters, explore a fantasy world, complete quests, go on adventures, create a story by roleplaying, and advance the created character. Many MUDs were fashioned around the dice-rolling rules of the Dungeons & Dragons series of games.

A melee (/ˈmeɪleɪ/ or /ˈmɛleɪ/) is a confused hand-to-hand fight among several people. The English term melee originated circa 1648 from the French word mêlée (French: [mɛle]), derived from the Old French mesler, from which medley and meddle were also derived.

The 1812 tabletop wargame Kriegsspiel, and H.G. Wells' 1913 Little Wars, referred to the hand-combat stage of the game as a melée, or mêlée, respectively. The term was brought over to tabletop role-playing games such as Dungeons & Dragons, and in turn to role-playing video games, to describe any close-combat encounter.

In video games, a power-up is an object that adds temporary benefits or extra abilities to the player character as a game mechanic. This is in contrast to an item, which may or may not have a permanent benefit that can be used at any time chosen by the player. Although often collected directly through touch, power-ups can sometimes only be gained by collecting several related items, such as the floating letters of the word 'EXTEND' in Bubble Bobble. Well known examples of power-ups that have entered popular culture include the power capsules from Pac-Man (regarded as the first power-up) and the Super Mushroom from Super Mario Bros., which ranked first in UGO Networks' Top 11 Video Game Powerups.

Items that confer power-ups are usually pre-placed in the game world, spawned randomly, dropped by beaten enemies or picked up from opened or smashed containers. They can be differentiated from items in other games, such as role-playing video games, by the fact that they take effect immediately, feature designs that do not necessarily fit into the game world (often used letters or symbols emblazoned on a design), and are found in specific genres of games. Power-ups are mostly found in action-oriented games such as maze games, run and guns, shoot 'em ups, first-person shooters, and platform games.

An action role-playing game (often abbreviated action RPG or ARPG) is a video game genre that combines core elements from both the action game and role-playing game genres.

Dungeon Master is a role-playing video game featuring a pseudo-3D first-person perspective. It was developed and published by FTL Games for the Atari ST in 1987, almost identical Amiga and PC (DOS) ports following in 1988 and 1992.

Dungeon Master sold 40,000 copies in its year of release alone, and went on to become the ST's best-selling game of all time. The game became the prototype for the genre of the 3D dungeon crawlers with notable clones like Eye of the Beholder.

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 and is usually offline, whereas PvP tends to be online. The terms are most often used in games where both activities exist, particularly MMORPGs, MUDs, and other role-playing video games, to distinguish between game modes. 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 experience point (often abbreviated as exp or XP) is a unit of measurement used in some tabletop role-playing games (RPGs) and role-playing video games to quantify a player character's life experience and progression through the game. Experience points are generally awarded for the completion of objectives, overcoming obstacles and opponents, and successful role-playing.

In many RPGs, characters start as fairly weak and untrained. When a sufficient amount of experience is obtained, the character "levels up", achieving the next stage of character development. Such an event usually increases the character's statistics, such as maximum health, magic and strength, and may permit the character to acquire new abilities or improve existing ones. Levelling up may also give the character access to more challenging areas or items.

Forgotten Realms is a campaign setting for the Dungeons & Dragons (D&D) fantasy role-playing game. Commonly referred to by players and game designers as "The Realms", it was created by game designer Ed Greenwood around 1967 as a setting for his childhood stories. Several years later, it was published for the D&D game as a series of magazine articles, and the first Realms game products were released in 1987. Role-playing game products have been produced for the setting ever since, in addition to novels, role-playing video game adaptations (including the first massively multiplayer online role-playing game to use graphics), comic books, the Forgotten Realms play-by-mail game, and the film Dungeons & Dragons: Honor Among Thieves.

Forgotten Realms is a fantasy world setting, described as a world of strange lands, dangerous creatures, and mighty deities, where magic and supernatural phenomena are very real. The premise is that, long ago, planet Earth and the world of the Forgotten Realms were more closely connected. As time passed, the inhabitants of Earth had mostly forgotten about the existence of that other world – hence the name Forgotten Realms. The original Forgotten Realms logo, which was used until 2000, had small runic letters that read "Herein lie the lost lands" as an allusion to the connection between the two worlds.

Player versus environment (PvE), also known as player versus monster (PvM), and commonly misinterpreted as player versus entity or player versus enemy, is a term used for both single-player and online games, particularly MMORPGs, CORPGs, MUDs, other online role-playing video games and survival games to refer to fighting computer-controlled enemies – in contrast to player versus player (PvP) which is fighting other players in the game. In survival games a large part may be fighting the elements, controlling hunger and thirst, learning to adapt to the environment and exploration.

Usually a PvE mode can be played alone, with human companions or with AI companions. The PvE mode may contain a storyline that is narrated as the player progresses through missions. It may also contain missions that may be done in any order.

In video games, first-person (also spelled first person) is any graphical perspective rendered from the viewpoint of the player character, or from the inside of a device or vehicle controlled by the player character. It is one of two perspectives used in the vast majority of video games, with the other being third-person, the graphical perspective from outside of any character (but possibly focused on a character); some games such as interactive fiction do not belong to either format.

First-person can be used as sole perspective in games belonging of almost any genre; first-person party-based RPGs and first-person maze games helped define the format throughout the 1980s, while first-person shooters (FPS) are a popular genre emerging in the 1990s in which the graphical perspective is an integral component of the gameplay. Although, like third-person shooters (TPS), the term has come to define a specific subgenre of shooter games rather than any using the perspective, with several shooter games, while belonging to other subgenres, using a first person perspective, such as, traditionally, light gun shooters, rail shooters, and shooting gallery games. Other genres that typically feature a first person perspective include amateur flight simulations, combat flight simulators, dating sims, driving simulators, visual novels, immersive sims, and walking sims, although it has virtually been used in all genres, including survival horror and stealth games, either as main perspective or for specific actions or sections.

Henk Rogers is a Dutch-born American video game designer and entrepreneur. He is known for producing Japan's first major turn-based role-playing video game The Black Onyx, securing the rights to distribute the Russian puzzle video game Tetris on video game consoles where the game found popularity, and as the founder of Bullet-Proof Software (and later Blue Planet Software) and The Tetris Company, which licenses the Tetris trademark. He was instrumental in resolving licensing disputes that brought Tetris to the Game Boy. Today, he is managing director of The Tetris Company.

Role-playing or roleplaying is the changing of one's behaviour to assume a role, either unconsciously to fill a social role, or consciously to act out an adopted role. While the Oxford English Dictionary offers a definition of role-playing as "the changing of one's behaviour to fulfill a social role", in the field of psychology, the term is used more loosely in four senses:

• To refer to the playing of roles generally such as in a theatre, or educational setting;
• To refer to taking a role of a character or person and acting it out with a partner taking someone else's role, often involving different genres of practice;
• To refer to a wide range of games including role-playing video game (RPG), play-by-mail games and more;
• To refer specifically to role-playing games.