Video game developers pump millions of dollars into developing engrossing single-player campaigns, but statistics show they might be wasting their time.

A week after the release of Battlefield 3, Raptr achievement tracking shows only 28.4% of players have completed the single-player campaign.

Some might say a week isn't enough time to complete the game, but Call of Duty: Black Ops' single-player fares even worse – completed by just 18.6% of the 350,000 followers, despite being released a full year ago.

The single-player campaign for Call of Duty: Modern Warfare 2, the predecessor to Black Ops, has been completed by 59.1% of players.

These numbers are in no way an indication of people not playing the games – Kotaku.com reports that both Black Ops and Modern Warfare 2 are still the most played games on Xbox Live, even after the release of Battlefield 3.

These statistics show that more people are heading towards multiplayer gaming before single-player, which begs the question – are single-player campaigns redundant?