Online Play
If you need further help, ask on the official Cemu Discord Server for assistance.
In this section, we look at how to enable online play on Cemu. This involves dumping a set of online files from your Wii U to make Nintendo think that the connection from Cemu is actually coming from your console.
TIP
If you do not plan on using online services you may skip this page. Using Cemu online has not resulted in any bans to date.
After we've dumped the online files, you'll be able to play with other Wii U and Cemu players on Nintendo's official game servers.
To do this, we're going to run a dumping application through the Wii U browser to transfer your account information to a USB storage device or SD card.
As we will be connecting to real Nintendo servers, do not:
- Use mods, cheats or hacks
- Share your online files for other people to use
- Play on both your console and Cemu at the same time
- There have been no confirmed ban cases, but this may still be unsafe
- Using the same account to play online will kick the other player offline
Doing any of these may get your console banned, restricting you from accessing online play temporarily or permanently.
DANGER
Warning regarding reformatting or selling your Wii U Console:
Reformatting your console will result in your NNID being unlinked from that console. You will no longer be able to use online features on Cemu until you re-link your account to that console and re-obtain the files necessary for online play.
Selling your console (which is not permitted by Cemu because you technically do not own that data anymore,) will likely also result in the new owner reformatting the console or otherwise removing your account from the console. This will result in permanent loss of access.
If you want to play online with Cemu, keep your Wii U console.
Requirements
- A FAT32 formatted USB storage device or SD card
TIP
All storage devices must be formatted to FAT32 with 32KB (32768) allocation. For storage devices larger than 32GB, use guiformatopen in new window to format it correctly.
Ensuring your password is saved
- Turn on your Wii U console
- Load up the account you are going to use online.
- To switch accounts, open the top-left avatar.
- After you're on the correct account, open the top-left avatar once again.
- Scroll down and turn on the "Save password?" feature.
Launching dumpling
- Turn on your Wii U console
- If prompted, do not format any USB devices through the Wii U
- Insert your USB storage device or SD card
- Launch the internet browser and open
dumplingapp.com
- Tap
Launch dumpling
- If your console freezes for more than 10 seconds, hold down the Power button for 4 seconds and reboot
- Once rebooted, reset the browser's save dataopen in new window and try again
Using dumpling
- Select
Dump files to use Cemu online
- Verify that the dump's destination is correct (SD or USB)
- Ensure your desired Wii U Account is set
- Select
Start
to begin dumping - Select
Dump Wii U applications (e.g. Friend List, Browser etc.)
- Change the desired dump destination accordingly
- Select the Friend List to dump
- Select
Start
to begin dumping - When finished, go back to the Dumpling main menu
- Exit the dumpling app
Copying the Online Files to Cemu
- Take your USB storage device or SD card out of your Wii U and put it in your PC
- Copy
otp.bin
andseeprom.bin
from the/dumpling/Online Files
folder to your Cemu directory- This is where
Cemu.exe
is located
- This is where
- Copy the
sys
andusr
folders fromdumpling/Online Files/[Your Account Name]/mlc01
on your SD/USB device to the mlc01 folder for Cemu- If you've changed your MLC path in your
Options
->General Settings
, you'll need to put it in that instead of the mlc01 folder next to your Cemu.exe. - Overwrite any files if prompted
- If you've changed your MLC path in your
Adding the Friend List application
- Open the Cemu application
- On the top bar, select
File
->Install game title, update or DLC
- Navigate to the
dumpling/System Applications
folder on your SD/USB device - Enter the
Friends List/meta
application folder - Select the
meta.xml
file
Enabling Online Mode
- Open the Cemu emulator
- On the top bar, go to
Options
->General Settings
- Navigate to the
Account
tab - Ensure you have read the text at the top of the page
- Check the box
Enable online mode
Your Wii U should now be ready to go online. If you ever want to disable online features, simply uncheck the box Enable online mode
.