You can play Nightmare by adding the server in the Minecraft launcher.

On Minecraft Java Edition, open the Minecraft launcher. Click “Multiplayer” and then “Add Server” and enter the Nightmare IP Address nightmare.mcserver.us in the “Server Address”. Then press “Done” and start playing.

For Minecraft Java Edition, the Nightmare IP is nightmare.mcserver.us.

To join Nightmare, follow the instructions on how to play above.

In Nightmare, you can play Survival, Hardcore and PvE.

To vote for Nightmare, click the vote button at the top of the page. Then enter your Minecraft username and click “Vote”.