Ares was a computer game written by Nathan Lamont and originally published by Changeling Software, which went out of business while launching Ares in 1998. Ares was modified by Lamont and re-released by Ambrosia Software in 1999.
In 2008, Nathan Lamont released the original source code to Ares under the GNU GPL 2.0, and most of the media under the CC Attribution-Noncommercial-Share Alike license. In 2011, he added the option of using the GNU LGPL 3.0 for the Ares source code.
This has produced the amazingly faithful Antares, a pixel-perfect reproduction of the original game. Bravo sfiera!
The Xsera project is also based on Ares, but seeks to build upon the original experience rather than reproduce it.
The media (text, images, sounds, and music) are distributed separately. Not all media from the original commercial distribution is included. Some sounds have been intentionally excluded for licensing reasons. The source models for most of the sprites and interface elements are also available, under the same CC license, converted by the Xsera Team into contemporary formats (.wrl/VRML and .obj/Wavefront).
The movies are available under a more restrictive CC Attribution-Noncommercial-No Derivative Works license. The more restrictive license is necessary because of some of the sounds effects used were, in turn, restrictively licensed.
Also available: Source Code for Hera, game data editor for Ares.