🔥Minecraft Server on Repl.it!🔥
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Scoder12 (876)

How to run a minecraft server on repl.it

Hey guys today I'm going to show you how to run a minecraft server on repl.it.

Note: You need hacker plan for this to work right now!

Installation is super simple!

  1. If you want to support 1.17 fork this repl. Otherwise, start a new bash repl and in main.sh put bash mc.sh
  2. In the console paste this:
wget -O mc.sh https://xpiredl.scoder12.repl.co/mc.sh

If you get any errors make sure that you typed everything right or try starting from scratch.

Run the repl and follow the instructions!
Once you see Done! in the console, connect to the ip shown in ip.txt. If you don't want the IP to change you can purchase ngrok premium or use a dedicated minecraft host such as PebbleHost
If you have questions ask in the comments!

How to change minecraft version

  1. If you already have a server, delete the files mc/server.jar and mc.sh
  2. Run the command above that starts with wget again
  3. In mc.sh, find the line that says VERSION=1.16.3 and edit it to your desired version

If you get "signal: killed" or "OutOfMemoryError"

You have two options:
1. Buy hacker plan
2. Change the line at the bottom of mc.sh that starts with java to be java -Xmx1G -Xms1G -jar server.jar nogui" to "java -Xmx200M -Xms200M -jar server.jar nogui (thanks @gomgo)

Credits

Huge shoutout to @letsrepl for the initial concept.

Remember to upvote if you enjoyed!

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APCSPShehadaK (1)

Hey, any way to keep the server alive? The server closes very quickly even with hacker plan, I even lost ~5min of progress (autosave).
I wasn't able to listen to port 8080 & host the mc server at the same time as the http server would close as soon as the mc server started.

Any suggestions or plans?

Unrelated: Inside of your server.properties, I'd recommend setting sync-chunk-writes=false to improve performance & enable-rcon=false as rcon is not being used.

Scoder12 (876)

@APCSPShehadaK its very tricky to have multiple ports listening on repl.it and have the correct one be forwarded but you might be able to get it to work.

APCSPShehadaK (1)

@Scoder12
Solved with a vanilla php server on port 3000.
index.html is a placeholder, the file can hold anything but should exist.

main.sh:
php -S 0.0.0.0:3000 index.html & bash mc.sh