Experience point in the context of "Health (gaming)"

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.

League of Legends (LoL), commonly referred to as League, is a multiplayer online battle arena video game developed and published by Riot Games. Inspired by Defense of the Ancients, a custom map for Warcraft III, Riot's founders sought to develop a stand-alone game in the same genre. Since its release in October 2009, League has been free-to-play and is monetized through purchasable character customization. The game is available for Windows and macOS.

In the game's main mode, Summoner's Rift, two teams of five players battle in player-versus-player combat. Each player controls a character, known as a "champion", with unique abilities and styles of play. During a match, champions become more powerful by collecting experience points, earning gold, and purchasing items to defeat the opposing team. Teams defend their base and win by pushing toward the enemy base and destroying a large structure within it, the "Nexus".

Heroes of the Storm is a multiplayer online battle arena video game developed and published by Blizzard Entertainment. Announced at BlizzCon 2010, it was released on June 2, 2015, for macOS and Windows. The game features various crossover characters from Blizzard's franchises as playable heroes, as well as different battlegrounds based on Warcraft, Diablo, StarCraft, and Overwatch universes.

Matches are contested between two teams of five players, each aiming to destroy the opposing team's main structure, known as the "Core." The first team to do so wins the match, with a typical duration of around 20 minutes. Matches take place on various themed battlegrounds, each featuring unique level designs and secondary objectives, the completion of which grants significant advantages. Every player controls a single character, known as a "hero", with a set of distinctive abilities and differing styles of play. Heroes become more powerful over the course of a match by collecting experience points and unlocking "talents" that offer new abilities or augment existing ones, contributing to the team's overall strategy.

Dota 2 is a 2013 multiplayer online battle arena (MOBA) video game by Valve. The game is a sequel to Defense of the Ancients (DotA), a community-created mod for Blizzard Entertainment's Warcraft III: Reign of Chaos. Dota 2 is played in matches between two teams of five players, with each team occupying and defending their own separate base on the map. Each of the ten players independently controls a character known as a hero that has unique abilities and differing styles of play. During a match, players collect experience points (XP) and items for their heroes to defeat the opposing team's heroes in player versus player (PvP) combat. A team wins by being the first to destroy the other team's Ancient, a large durable structure located in the center of each base.

Development of Dota 2 began in 2009 when IceFrog, lead designer of Defense of the Ancients, was hired by Valve to design a standalone remake in the Source game engine. It was released for Windows, OS X, and Linux via the digital distribution platform Steam in July 2013, following a Windows-only open beta phase that began two years prior. Dota 2 is fully free-to-play with no heroes or any other gameplay element needing to be bought or otherwise unlocked. Valve supports the game as a service, selling loot boxes and a battle pass subscription system called Dota Plus that offer non-gameplay altering virtual goods in return, such as hero cosmetics and audio replacement packs. The game was ported to the Source 2 engine in 2015, making it the first game to use it.

A quest, or mission, is a task within video games that a player-controlled character, party, or group of characters may complete in order to gain a reward. Quests are most commonly seen in role-playing games and massively multiplayer online games. Rewards may include loot such as items or in-game currency, access to new level locations or areas, an increase in the character's experience in order to learn new skills and abilities, or any combination of the above.

Quests often fall into several types, such as kill quests, gather quests, delivery/"fetch" quests, and escort quests. However, quests can include more than one mission, such as gathering something and transporting it somewhere. Quests can be linked together to form quest series or chains. In this manner, quests are used to provide the player with further background to the setting their characters are in. This mechanism is also used to advance any story or plot the game might have.