To invite another player into your game, you will need to send over a code where the second player will need to input the same code. You are now set to open the game and get online play going with a buddy.

Click on the checkbox on the left-hand side and then click on install at the bottom.

Head back to Mania Mod Manager and hit the refresh button, where you will now see MultiMania appear.

Extract the file named MultiMania to your mods folder inside your main Sonic Mania file.

Next, download the MultiMania mod from developers GameBanana, using manual download.

Once completed, you will find a ManiaModManager.exe file go ahead and open it.

Use a zipping app to extract Mania Mod Loader to the same file you keep Sonic Mania.

Download Mania Mod Loader on their main webpage.

On the flip side, there is still an option to download a two-player multiplayer mod through another website called GameBanana. We are unsure whether it will become available in the near future. This is because CodenameGamma, who is the developer behind the mod, has disabled mod downloads. At the time of writing, it is unfortunate to let our readers know that the option to do a four-player co-op is currently unavailable.

Sonic mania plus mod manager codes