Citra Multiplayer

Citra’s multiplayer feature offers a significant enhancement by enabling local wireless multiplayer emulation over the Internet. Unlike the physical limitations of a real 3DS, where connectivity depends on proximity, Citra Emulator uses a robust server/client infrastructure to transmit wireless communication online.

How It Works

Instead of traditional single-console netplay seen in other emulators, Citra’s approach avoids common issues like desyncs or save synchronization. Each player runs their instance of Citra, acting as an independent emulated 3DS, while all communication occurs through a multiplayer room. These rooms function as servers that facilitate data exchange among connected players.

Hosting Multiplayer Rooms

Using Public Rooms

For casual gaming with friends, there’s no need to host your own room. Citra’s Public Room Browser provides access to numerous rooms hosted by Citra and the community. However, note that this service will end in April 2024, requiring alternative hosting methods afterward.

Temporary Room Hosting

To host a temporary room:

1. Open the Citra UI and navigate to Multiplayer > Host Room.
2. The room will close when the host exits.

Note: Port forwarding is necessary if the host and players are on different networks.

Dedicated Room Hosting

If you prefer a persistent, dedicated room, consider the following:

• 24/7 Availability: A dedicated room requires a constantly running computer, making it impractical to use a personal PC.
• Internet Speed and Bandwidth: Public rooms need a reliable Internet connection and high bandwidth to prevent disconnections. Popular rooms can consume over 1TB of data monthly.
• Optimal Hosting Environment: Using a VPS (Virtual Private Server) like Linode or DigitalOcean is often the best choice for hosting, offering stability and scalability.

Port Forwarding Explained

Most routers share a single public IP across all devices, blocking incoming connections by default. To enable access:

1. Configure Port Forwarding on your router, directing external requests to the correct internal device.
2. Refer to your router’s manual or online resources for detailed instructions.

For VPS users, adjust Security Groups to allow the necessary ports. This setting protects your server by default but requires manual configuration to enable multiplayer functionality.

Conclusion

Citra’s multiplayer transforms local wireless play into a global experience with minimal technical hurdles. Whether hosting a temporary room or managing a dedicated server, its versatility ensures seamless connectivity for players worldwide. With some setup, you can easily enjoy enhanced multiplayer gaming with friends or the broader Citra community.