Multiplayer is a game mode in which two or more human players take part in the same game session at the same time or in turns, either cooperating, competing or both. In gaming, it is one of the most basic ways to classify a video game: a title can be single-player only, multiplayer only, or offer both modes side by side.
The term covers a very wide range, from two friends sharing one screen on a couch to massive online worlds with thousands of players on the same server. What unites them is that the game must synchronize the actions of several people so that each sees a consistent version of events, which shapes both the design and the technology behind it.
How multiplayer games connect players
The simplest form is local multiplayer, where all players use the same device. On a console, each person holds a controller and the screen is shared or split. Because everything runs on one machine, there is no network latency and no synchronization problem, but the number of players is limited by screen space and controller ports.
Between these two sits LAN multiplayer, in which several devices in the same room or building connect over a local network. It was the standard way to play competitive PC games before fast home internet, and it remains common at LAN tournaments, where organizers want minimal latency and full control over the hardware. Some handheld consoles offer a similar local wireless mode that links nearby devices without any internet connection.
Online multiplayer connects separate devices over a network. Each device runs its own copy of the game and exchanges messages about inputs, positions and events. The networking model decides who has the final word about what happened, which affects fairness, cheating resistance and cost.
The following table compares the main network architectures used for online play.
| Architecture | How it works | Main trade-off |
|---|---|---|
| Dedicated server | Operator’s server runs the authoritative game state | Fair and secure, but costly to run |
| Listen server | One player’s device hosts and also plays | Cheap, but the host has an advantage |
| Peer-to-peer | Devices exchange inputs directly with each other | Low cost, weaker against cheating |
| Lockstep peer-to-peer | All peers simulate identical inputs each turn | Efficient for strategy games, sensitive to lag |
To hide network delay, online games use client-side prediction: a player’s own movement is shown immediately, and the server corrects it later if needed. Servers often run at a tick rate of 20 to 128 updates per second; higher rates feel more responsive but need more bandwidth and computing power.
Types of multiplayer play
Multiplayer modes are usually grouped by the relationship between players and by scale. Competitive modes set players or teams against each other, while cooperative modes give them a shared goal. Many modern games mix both, for example teams that cooperate internally and compete against other teams.
| Mode | Typical player count | Example genres |
|---|---|---|
| Co-op | 2 to 4 players | Action, survival, puzzle |
| Player versus player (PvP) | 2 to 12 players per match | Fighting, first-person shooter |
| Team-based PvP | 6 to 20 players | Shooters, strategy, sports |
| Battle royale | 50 to 150 players | Last-player-standing shooters |
| MMORPG | Thousands per world | Persistent role-playing worlds |
| Asynchronous | Any number, taking turns | Mobile strategy, board game adaptations |
Player counts depend on the game and are set by design choices such as map size and server capacity, not by a fixed rule. Asynchronous multiplayer is notable because players do not need to be online at the same time, which suits mobile play and turn-based games.
Multiplayer compared with related game terms
Several neighboring terms describe parts of the multiplayer landscape. A single-player game is designed around one person and computer-controlled characters such as NPCs. Co-op is a subset of multiplayer focused on shared goals, and crossplay describes multiplayer that connects players across different platforms.
| Term | Relation to multiplayer | Key difference |
|---|---|---|
| Single-player game | Opposite design focus | Only one human player |
| Co-op | A type of multiplayer | Players share a common goal |
| Crossplay | A feature of multiplayer | Connects players on different platforms |
| MMORPG | A genre built on multiplayer | Persistent world with very many players |
| Esports | Organized competitive multiplayer | Formal leagues, teams and audiences |
Design and business considerations
Adding multiplayer changes how a game must be built. Designers need matchmaking, which groups players of similar skill, and systems for communication, moderation and reporting. Balancing becomes harder because human opponents find and exploit weaknesses much faster than scripted enemies.
Online multiplayer also creates ongoing costs. Servers, anti-cheat systems and support staff must be paid for as long as the game is online. This is one reason why console platforms often require a paid online subscription for online play, and why many multiplayer games use free-to-play models with in-game purchases or regular content seasons.
- Matchmaking quality strongly influences whether new players stay.
- Server regions determine latency; a typical playable ping is below about 100 milliseconds for fast action games.
- Player population must stay large enough to fill matches quickly.
- Live updates keep the game balanced and give players reasons to return.
Limitations and common problems
The biggest technical problem is network latency, the delay between an action and its effect on other players’ screens. High or unstable latency causes rubber-banding, missed hits and unfair outcomes. Good netcode can hide some delay, but it cannot remove physical distance between players and servers.
Online multiplayer also depends on the publisher keeping servers running. When servers shut down, online modes can stop working entirely, unless the game supports community-hosted servers or local play. Toxic behavior and cheating are further risks that require constant moderation.
In plain words
Multiplayer means playing a game with other people instead of alone. You might sit next to a friend on the same sofa, or join strangers from other countries over the internet.
Behind the scenes, the game keeps everyone’s view of the action in agreement, much like a referee who makes sure every player sees the same score. The better that referee works, the fairer and smoother the game feels.
A real-world example
Four friends living in different cities want to play together on a Friday evening. They pick a cooperative survival game that supports four-player online co-op and crossplay, so two of them use consoles and two use PCs.
One friend creates a private session, and the others join through an invitation code. The game runs on the publisher’s dedicated servers in the nearest region, giving each player a ping of about 30 to 60 milliseconds. Voice chat runs through the game itself.
Over three hours they build a shared base and defeat a difficult boss together. Because the progress is saved on the server, everyone keeps the same world state and can continue the following week, even if a different friend starts the session.