
1) MacOS game 2) Windows game
Found on
https://www.crosswordclues.com/clue/shadowgrounds

February 2006 (France, Benelux, Russia, Australia & New Zealand) March 2006 (North America, Spain) Linux: September 16, 2009 Mac OS X April 13, 2011 Steam: May 8, 2006 Source: Shadowgrounds is a top-down shooter for Microsoft Windows, Linux and Mac OS X, developed by Frozenbyte. The game takes place on a space colony on Ganymede which is being att...
Found on
http://en.wikipedia.org/wiki/Shadowgrounds
No exact match found.