The Ur-Quan Masters is a project that aims to port the DOS/3DO game Star Control II to modern platforms. The GCW Zero is (in my opinion) now one of them:
A GCW Zero port (following the porting guidelines) of The Ur-Quan Masters 0.7.0 is available here: https://drive.google.com/file/d/0Bx3gTbeJuJRWeHlyZkhNUm85VzQ/view?usp=sharing
An older, but better tested version without positional audio and without addon support, but packaged together with voices and 3DO music, can be found here: https://drive.google.com/file/d/0Bx3gTbeJuJRWTmEtTGNuWE1HTTA/edit?usp=sharing Installation of Addons: The official addons (voices, 3DO music and remixes - I recommend to at least get the voices, they add greatly to the game) can simply be put in the ~/.uqm/addons folder (if the folder doesn't exist, feel free to create it) and enabled/disabled in the game settings menu.
For unofficial addons a little manual work is required. These need to be unpacked in the ~/.uqm/useraddons folder (so that their .rmp files are directly in the useraddons folder, not a subfolder of it), and the paths in the .rmp files have to be edited to point to "useraddons" instead of the addon name. Changelog: 2014-11-23: Positional Audio: After switching to the OpenAL audio driver in the advanced settings, one can enable positional audio in the sound settings now. Addon System: The previously undocumented addon system has been extended. As a consequence of this, the voices and 3DO music packages are now optional.
2014-11-20: Inital Release The default key mappings:
In the menu: A, Start: Select B, Select: Back Y: Delete X: Backspace Select: Skip cutscene D-Pad: Move or type
Text Input: D-Pad Up/Down: Select character D-Pad Left/Right: Move Cursor A: Confirm Input B: Cancel Input Shoulder Keys: Switch Upper/Lower Case. This port was possible, since the games source code is available under the GNU General Public License, and this port is (of course) released under the same license conditions. In accordance with the GPL, the complete source code of the game with all modifications which were done in order to adapt it for the GCW Zero is included within the .opk file (sourcecode.tar.gz). The keyboard mappings are not part of the source code, but are defined within the uqm-0.7.0-content.uqm file, which is part of the game content.
The game content is released under Creative Commons Attribution-Noncommercial-ShareAlike 2.5. The original files can be found at http://sc2.sf.net/ and the only difference of the files in this OPK are the keybindings. The people involved in the creation of the game, in making it portable and details about the copyright are listed on the Team page of the UQM Website. For further details please consult the manual, accessible from GMenu2X by pressing SELECT while highlighting the UQM icon. This manual contains useful information on the port, and on various ingame aspects, including the backstory and a list of the ship types available.