Complex sentence: It was announced in December 2009 and originally released in 2010 by Firesky and Cheyenne Mountain Entertainment, however Cheyenne Mountain Entertainment has been in receivership since March 2010 and Firesky entered into an agreement with Dark Comet Games for the maintenance, operation and development of Stargate Resistance.
Split into simpler sentences: It was announced in December 2009 and originally released in 2010 by Firesky and Cheyenne Mountain Entertainment, however Cheyenne Mountain Entertainment has been in receivership since March 2010. Since then, Firesky entered into an agreement with Dark Comet Games for the maintenance, operation and development of Stargate Resistance.