How to play online on Citra for Android: a complete step-by-step guide

Last update: April 2
  • Online modes on Citra Android require a modified version with multiplayer support.
  • It is essential to correctly configure the rooms and the configuration file to avoid errors.
  • Playing online from Android allows you to connect with other players thanks to Citra MMJ and services like Hamachi or local WiFi.
Citra Android emulator

If you've ever wanted to relive your favorite Nintendo 3DS games but share the experience with friends or players around the world directly from your mobile device, you've come to the right place. More and more users are looking to enjoy multiplayer games from their Android devices using Citra, one of the most popular 3DS emulators. However, online play with Citra isn't as straightforward as it might seem, especially when it comes to mobile devices.

The goal of this guide is to help you understand the entire process, from which version you need to how to configure Citra for hassle-free online gaming. Throughout this article, we explain step-by-step how to achieve this, which tools to use, and how to resolve common errors to ensure your online gaming experience is as smooth as possible.

What is Citra and what version do I need to play online on Android?

Citra is an open source Nintendo 3DS emulator which allows you to run games from this console on multiple platforms, including Android. However, The official version of Citra available on Google Play does not include support for online multiplayer.This means that if you want to play with friends or strangers, you'll need to download a modified version of the emulator.

Today, The most used version for online gaming from Android is Citra MMJ, an unofficial modification that adds additional features, including the ability to connect to multiplayer rooms. This fork of the emulator was developed by the community and is updated independently of the official version.

Download and install Citra MMJ Android

As this version is not available on the Play Store, You must download the APK from a secure source.You can find it through specialized forums or communities like Reddit, where other users share verified links.

Once the APK file is downloaded, simply:

  • Enable the option to install apps from unknown sources on your device.
  • Locate the downloaded file and run it to start the installation.
  • Once installed, grant the permissions it requests when it starts for the first time.
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Important: While installing a modified version involves certain risks, if you use reliable sources and have an active antivirus, you shouldn't have any problems.

How does online multiplayer work in Citra MMJ Android?

The online system in Citra does not use official Nintendo servers. Instead, It is based on the connection through multiplayer rooms that emulate a local networkThis means you can connect with other players who share your version of the game and are connected to the same “lobby.”

To connect with other people, you will need:

  • A suitable configuration file where the room you want to enter is indicated.
  • Know the room code and password (if any).
  • A version of the game compatible with that of other players. Make sure you are using the same region and version number.

Steps to set up and play online on Citra Android

Let's go into detail about how you should configure everything to work correctly:

1. Create or join a multiplayer room

On Reddit and other forums, you can find posts with codes for public rooms. Alternatively, you can create a private room yourself and share it with friends. To connect, you need the IP or address of the room, as well as the port and possible password.. If you want to learn more about how to play online, check out this quick guide.

2. Edit the Citra configuration file

A crucial part of the process is correctly configuring the "qt-config.ini" file, which defines which room to use. This file is usually located in the following folder: /android/data/org.citra.mmj/files/citra-emu/config.

You need to open this file with a text editor and add or edit these lines under the [WebService] section:

[WebService] Token=your_token_here CustomServerHost=salas.citra.net

Nota: To obtain a valid token, you need to link your emulator to an account on the official Citra website. While this feature may vary depending on the MMJ version, some forks require it.

3. Start the game and connect

Once set up, open the game and go to multiplayer mode from the title menu (if supported). You'll see a connection prompt or the option to view online users. If all went well, you should be able to see other people in the room and join their games.. Remember that the same configuration and connectivity are key, so you can check This guide on card games for more tips.

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Tips to improve your online experience

The gaming experience may vary depending on your connection, hardware and settings.These tips will help you have a smoother game:

  • Always connect to stable Wi-Fi networks. Avoid using mobile data.
  • Use the exact same version of the game as the other players.
  • If you experience lag, lower the game resolution from Citra's options.
  • Avoid running other apps in the background during gameplay.

Common errors and how to fix them

Some of the most common errors when playing online on Citra Android include:

  • The room does not appear: Check that the address and port are correct in the configuration file.
  • Short-term disconnections: This is usually due to an unstable connection. Check your network and try again.
  • You don't see the other players: make sure you are using the exact same version of the game.
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Online gaming alternatives: Hamachi and LAN servers

In addition to public rooms, there are other ways to connect multiplayer games:

Hamachi or similar applications allow you to create a virtual private network where all players appear as if they're on the same local network. For Android, there are specific versions of VPNs that achieve the same effect. This option is ideal when you want to play privately with friends.

Alternatively use local WiFi connections if you're all on the same network. Some games automatically detect players connected to the LAN and allow matches without having to set up external rooms. You can also check This Archero 2 guide for more information on online games.

Community Engagement: The Role of Reddit

Much of the information and support for online gaming comes from the community. Subreddits like r/EmulationOnAndroid are key sources for discovering new Citra MMJ builds, finding active rooms, or troubleshooting bugs.Although all of this information doesn't come directly from the developers, the community has managed to keep support alive through tutorials, help threads, and YouTube videos.

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In these spaces, users share Specific solutions for mobile models, Android versions, or even problems with certain titlesIf you have any questions during the process, don't hesitate to check out these communities, where other players have probably gone through the same thing. If you're interested, you can check out How to play Tetris Friends with a friend.

Which games work best in Citra Android's online mode?

Not all 3DS games behave the same in multiplayer mode. Some of the most compatible and popular titles online are:

  • Mario barth 7
  • Super Smash Bros 3DS
  • Monster Hunter 4 Ultimate
  • Pokémon Sun and Moon (although online battles may present more latency)

If you are going to meet up with friends to play, it is best to first test the title in single player mode to verify that it works correctly.. Next, make sure everyone has the same version number and similar settings to avoid any out-of-sync issues.

Compatibility and performance on Android phones

Citra online performance on Android depends largely on the device's hardware.To avoid problems, it's ideal to have a mobile phone with at least:

  • Mid-range or high-end Snapdragon processor
  • 3 GB of RAM or more
  • Good cooling to avoid performance drops after several minutes of gaming

Also, use Quality ROMs and updated emulator versions improve the overall experience.

Thanks to community work and modified versions of Citra, online gaming on Android is entirely possible and, in many cases, quite fluid. While it requires a little more effort than on PC, the reward is enjoying your favorite titles with friends from anywhere. With a good guide, the right tools, and a little patience, starting online gaming on Android is more accessible than ever.

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