From the article:
N'Lightning Software CEO Ralph Bagley believes half of the video game crowd is Christian. His company was the first of about 100 Christian game developers to invest in the creation of PC games. Its first title, "Catechumen," cost $830,000 to develop and has sold about 80,000 copies worldwide since its 2001 release, according to the company. The second game, "Ominous Horizons," cost $1 million to create and has sold more than 50,000 copies, he said.
"Fifteen years ago, the Christian music world looked like Christian games today," Bagley said. "It wasn't until the Christian music companies came together as a group and focused on quality that they were able to achieve success."