EA's Army of Two, originally planned for a November release, has been delayed until early 2008.
"Army of Two has potential to become a lasting EA franchise -- so getting the first title right is essential," Frank Gibeau, head of EA Games, said in a statement.
The company said it needed time to "polish" the co-op shooter, which is being programmed for the Xbox 360 and PlayStation 3.
Wedbush Morgan analyst Michael Pachter expected the game to earn approximately USD 54 million in revenue during EA's third quarter.
"It's an important game for them if they hope to establish it as a franchise," Pachter told Reuters.