Analysts said $500 million would likely be a record spent on a single game - especially one without an established track record. To break even, Activision would have to sell about 15 million to 16 million units of a $60 game, analysts said.

"It's a head scratcher, said Sterne Agee analyst Arvind Bhatia. "For brand new IP, it's tough but it could post a big surprise."

Bhatia expects the game will sell 8 million units. "Grand Theft Auto V," which hit stores last September, was a runaway success with over 32.5 million units as of February this year. But it was the fifth installment of a critically acclaimed series that had become an indelible component of popular youth culture.