Complex sentence: On June 27,2011, THQ announced it was dropping the long running "Red Faction" franchise; no more installments are in development due to poor sales of the last game in the franchise, "Red Faction Armageddon".
Split into simpler sentences: On June 27,2011, THQ announced it was dropping the long running "Red Faction" franchise and no more installments are in development. This is due to the poor sales over the latest game in the franchise, "Red Faction Armageddon".