The Cyan Worlds Engine


The Plasma game engine and its tools were developed and open-sourced by Cyan, Inc. This repository’s code was forked from the initial release repository at

The open-source Plasma engine is developed and maintained through contributions by volunteers. A full list of contributors can be found on GitHub.

This software is licensed under the GNU General Public Licence v3 (GPL v3) with exceptions for a list of non-free libraries used by the engine. No additional non-free library dependencies can be added to the project due to the difficulty in changing licensing exceptions.



This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit ( This product includes cryptographic software written by Eric A. Young ( This product includes software written by Tim J. Hudson (

Independent JPEG Group (IJG) JPEG Library

This software is based in part on the work of the Independent JPEG Group.