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Open source, multithreaded, voxel game engine and platform, written in Java.
Java Other
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What is Spout?

Spout is an open-source implementation of the Minecraft server software written in Java, originally forked from Tad Hardesty's Glowstone project, which was originally forked from Graham Edgecombe's now-defunct Lightstone project.

The official server software has some shortcomings such as the use of threaded, synchronous I/O along with high CPU and RAM usage. Spout aims to be a lightweight and high-performance alternative.

Spout's goal and focus is to offer a higher performance server that implements the universal SpoutAPI client/server platform. The Vanilla plugin can be used to implement Minecraft functionality. Bukkit plugin compatibility will be possible through the BukkitBridge.

Copyright (c) 2011-2012, SpoutDev

Who is SpoutDev?

SpoutDev is the team behind the Spout and Spoutcraft projects, I See You, and Pipe.
Afforess alta189 Wulfspider raphfrk narrowtux Top_Cat Olloth Rycochet RoyAwesome zml2008 Zidane

Visit our website or get support on our forums.
Track and submit issues and bugs on our issue tracker.

Follow us on TwitterLike us on FacebookDonate to the Spout project


  • The Minecraft Coalition - protocol and file formats research.
  • Trustin Lee - author of the Netty library.
  • Graham Edgecombe - author of the original Lightstone - and everyone else who has contributed to Lightstone.
  • Tad Hardesty - author of the Lightstone fork, Glowstone - and everyone else who has contributed to Glowstone.
  • Notch and all the other people at Mojang - for making such an awesome game in the first place!


The latest and greatest source can be found on GitHub.
Download the latest builds from Jenkins.


Spout is licensed under GNU Lesser General Public License Version 3, but with a provision that files are released under the MIT license 180 days after they are published. Please see the LICENSE.txt file for details.


Spout uses Maven to handle its dependencies.

  • Install Maven 2 or 3
  • Checkout this repo and run: mvn clean package install

Coding and Pull Request Formatting

  • Generally follow the Oracle coding standards.
  • Use tabs, no spaces.
  • No trailing whitespaces.
  • 200 column limit for readability.
  • Pull requests must compile, work, and be formatted properly.
  • Sign-off on ALL your commits - this indicates you agree to the terms of our license.
  • No merges should be included in pull requests unless the pull request's purpose is a merge.
  • Number of commits in a pull request should be kept to one commit and all additional commits must be squashed.
  • You may have more than one commit in a pull request if the commits are separate changes, otherwise squash them.
  • For clarification, see the full pull request guidelines here.

Please follow the above conventions if you want your pull request(s) accepted.

Something went wrong with that request. Please try again.