"Left Behind: Eternal Forces" was inspired by Tim LaHaye and Jerry Jenkins' best-selling book series about the battle of Armageddon, in which believers of Jesus Christ fight the Antichrist.

"It's a horrible game," said the Rev. Timothy Simpson of the Christians Alliance for Progress. "You either kill or covert the other side. This is exactly what the Osama bin Ladens of the world have portrayed us."

Troy Lyndon, the producer of the game, said the game's "warfare" is not violent, and that it emphasizes "spiritual battles" over fighting with guns. The game gives incentives to recruit believers instead of killing the forces of the Antichrist, according to Lyndon.