How to use this glossary
Game vocabulary comes from several overlapping worlds: the people who build games, the companies that sell them, the players who talk about them and the organizers who run tournaments. The same word can mean slightly different things in each. This list gives short, general definitions, grouped alphabetically in blocks, so you can find a term quickly and move on.
Some areas need more room than a one-line entry allows. The staged names used for build milestones, the commercial industry jargon around releases, the design vocabulary designers use, community gaming slang, the graphics settings menu, multiplayer terms and spectator terms each have their own fuller explanations on this site. Treat the definitions below as a starting point. Studios and communities do not always agree on exact meanings, and usage shifts over time.
A to C
- AAA: An informal label for big-budget games from large publishers. There is no official threshold for what qualifies.
- Achievement or trophy: A badge awarded by a platform or game for completing a stated task.
- AI: In most games, the rules and scripts that control non-player characters. It does not usually mean machine learning.
- Alpha: An early build in which the main features exist but are incomplete and unstable.
- Beta: A later build that is close to complete and is often shared with outside testers.
- Boss: A distinctive, usually tougher enemy that marks the end of a section.
- Buff: A change that makes a character, item or ability stronger.
- Build: A specific compiled version of a game. Players also use the word for a character’s chosen setup of skills and gear.
- Campaign: The main story-driven sequence of missions or levels.
- Checkpoint: A point where progress is saved automatically so a failed attempt restarts nearby.
- Co-op: Short for cooperative play, where players work together against the game.
- Cooldown: A waiting period before an ability can be used again.
- Cosmetic: An item that changes appearance but not how the game plays.
D to H
- DLC: Downloadable content released after the main game.
- DPS: Damage per second, a common way to compare how quickly something defeats enemies.
- Early access: Selling a game to players while development is still ongoing.
- Emergent gameplay: Situations that arise from systems interacting, rather than being scripted.
- Engine: The software framework that handles rendering, physics, input and other shared tasks.
- Frame rate: How many images are shown per second, often written as FPS.
- Free-to-play: A game that costs nothing to start, usually funded by optional purchases.
- Game feel: The responsiveness and physical satisfaction of controls and feedback.
- Gold: The point at which a version is finalized for release.
- HUD: The heads-up display, meaning the on-screen health, map and other information.
I to N
- Indie: A game made by a small or independent team. Like AAA, it is a loose label.
- Input lag: The delay between pressing a button and seeing the result on screen.
- Instance: A separate copy of an area, so groups of players do not share the same space.
- Lag: A noticeable delay or stutter, caused either by the network or by the device struggling.
- Live service: A game kept running and updated over a long period.
- Loot: Items that enemies or containers give you.
- Matchmaking: The system that groups players into a match, usually by skill and connection quality.
- Mechanic: A rule-based action or system the player can use, such as jumping or crafting.
- Meta: The prevailing strategies that experienced players consider strongest at a given time.
- Mod: A player-made modification to a game.
- Nerf: A change that makes something weaker.
- NPC: A non-player character controlled by the game.
O to S
- Open world: A game with a large space that players can explore in a fairly free order.
- Patch: An update that fixes problems or changes content after release.
- Permadeath: Losing a character permanently when it dies.
- Ping: The time a message takes to travel between your device and a server, measured in milliseconds.
- Procedural generation: Creating content such as levels from rules and random values instead of by hand.
- Quest: A task given to the player, often with a reward.
- Ranked: A competitive mode that tracks a skill rating.
- Respawn: Returning to play after being defeated.
- RNG: Random number generation, used casually to mean luck in a game.
- Roguelike: A genre built around randomized runs and usually permanent loss when you fail.
- Sandbox: A game that gives players tools and freedom rather than fixed goals.
- Skill ceiling: How much room there is to keep improving at a game.
- Speedrun: An attempt to finish a game as fast as possible.
- Spawn: The appearance of a player, enemy or item in the world.
T to Z
- Tick rate: How often a server updates the state of the game each second.
- Tutorial: The opening section that teaches basic controls and rules.
- UI: The user interface, meaning menus, buttons and on-screen elements.
- V-sync: A setting that matches the game’s output to the display’s refresh rate to reduce screen tearing.
- Vertical slice: A small, polished portion of a game that shows the intended quality of the whole.
- XP: Experience points, which measure progress toward leveling up.
Words that mean different things in different places
A few terms deserve a warning because they appear everywhere and shift meaning. “Build” can refer to software or to a character setup. “Meta” can mean the strongest strategies or the broader game around the game. “Lag” is used for network delay, but the same complaint can come from a slow device. When a word seems to contradict itself, check whether the speaker is a developer, a player or a commentator.
Terms about money deserve extra care. Words like loot box and microtransaction describe purchases that may involve chance or repeated spending, and chance-based purchases carry real financial risk. Definitions here are descriptive and are not advice about whether to buy anything. If you are unsure about spending, setting spending limits on an account is a practical first step.
Reading glossaries critically
Any glossary is a snapshot. New genres produce new words, and old words get stretched. If a term in a patch note or store description does not match what you see here, trust the context and the source. The most reliable definitions are the ones used consistently by the people running the game you are playing.