Ares is a 1998 video game developed by Nathan Lamont at Bigger Planet Software and originally published by Changeling Software for Classic Mac OS; it was re-released in 1999 as shareware by Ambrosia Software.

At some point of 2008, the game was released as free (as beer) and open-source, originally as .zip files hosted at Bigger Planet Software's website under a set of different licenses. The source code was released under the GNU Public License Version 2; the media (text, images, sounds, and music) were released under the CC BY-NC-SA 3.0 license; and the movies were released under the CC BY-NC-ND 3.0, due to the inclusion of licensed sound effects. The release also included Hera, the game data editor for Ares, released under the public domain.

At some point between September 19 and October 7, 2011, Nathan Lamont also added the option of using the GNU Lesser General Public License v3.0 for the Ares source code. He also included a .zip file titled "Ares-GNU-GPL-or-LGPL-Source.zip". Sadly, it was not preserved by the Wayback Machine and it is currently lost, even for the original creator. At some point between October 7 and November 2, 2011, the models were also released under the CC BY-NC-SA 3.0 with a .zip file titled "Ares-Models-CC.zip"; sadly the original file was also not preserved by the Wayback Machine.

On April 14, 2019, Nathan Lamon (beepy) uploaded the source code to GitHub, under five different repositories: ares-code, ares-media, ares-models, ares-movies and hera. As a result, the original files were deleted from the official website of Bigger Planet Software.

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