The Sword of Ares for Quake

The Sword of Ares is a 1998 unlicensed total conversion for Quake. The game adds several features not available in vanilla Quakes, such as the ability to switch to a third-person view (which may be a bit buggy) and several selectable player skins. The Sword of Ares was made of free content but was distributed as shareware. It appears that the registered version (as a separate PAK file) was eventually made available by the author as a free download too, as it can be found on PlanetQuake mirrors alongside the shareware release. It is an unofficial commercial total conversion, whether it was licensed by id Software is unclear. The game retailed at $9.99 on their official website.

You are stranded on a remote planet, apparently inhabited by humanoids, which has been taken over by the Ares corporation that proceeded to strip their world of all valuable resources. The player character is one of the few natives of the Resistance, who dare oppose the corporation and regain their freedom.