Source: https://daphnislabs.com/services/multiplayer-backend

# Multiplayer Backend Development

Backend services for matchmaking, sessions and player state, designed to integrate with an existing game client and its networking model.

[Discuss your project](https://daphnislabs.com/contact?service=multiplayer-backend) [Try the example](https://daphnislabs.com/services/multiplayer-backend#worked-example)

Player A Player B

**Authoritative match** Session remains active

Identity Session directory Progression

Reconnect to the current state

## Tools & technologies

-   Game service APIs
-   Realtime transport
-   Persistent storage
-   Session hosting

## Reconnect to an active match

Capability Example

A player's connection drops while the authoritative match session continues.

### Identify

### Restore

### Resume

Illustrative data. Nothing is sent to an external system.

Example workspace 1 / 3

### Returning player

```
Player authenticated
Active match: M-104
Session directory located
```

Authenticate the returning player and locate the active session.

### State snapshot

```
Authoritative revision: 217
Client acknowledges snapshot
Stale inputs rejected
```

Send a current state snapshot and acknowledge its revision.

### Resumed session

```
Client synchronized
New inputs accepted
Progression remains server-owned
```

Accept new inputs only after the client has resynchronized.

A resumed session or a clear expiry result, without trusting stale client state.

Follow the record through the next step

## Services around the match server.

### Match services

Create queues and sessions using agreed skill, region and party rules.

### Player services

Store progression, entitlements and results behind authenticated operations.

### Live operations

Observe active sessions, investigate failures and deploy service changes safely.

## Backend infrastructure with recovery paths.

-   **Backend services and API contracts**
-   **Session and authority model**

-   **Load and reconnect test suite**
-   **Infrastructure and operations runbook**

## Separate game simulation from platform services.

### Authority

Decide which system owns movement, inventory and match outcomes before defining messages.

### Capacity

Concurrent sessions, tick rates and regional latency targets drive hosting and load tests.

## Questions before we start.

### Does this include gameplay and art?

This scope is backend infrastructure. Complete multiplayer game development can include client gameplay, art and the full player experience.

### Can it integrate with our existing engine?

Yes, subject to its transport and hosting constraints. We start with a client-to-server integration prototype.

[Multiplayer Gaming Development](https://daphnislabs.com/services/multiplayer-game-development) [Unity Game Development](https://daphnislabs.com/services/unity-game-development) [Node.js Development](https://daphnislabs.com/services/nodejs-development)

## Bring your starting point.

Share the game client, authority model and expected session size and concurrency.

[Discuss your project](https://daphnislabs.com/contact?service=multiplayer-backend) [Explore related services](https://daphnislabs.com/services/multiplayer-game-development)