Infinity Blade update adds multiplayer

A promised free update for iPhone action RPG Infinity Blade has gone live on the App Store, adding multiplayer. There goes your life again.

The update adds a multiplayer arena, where players can act as Titan or Knight and issue challenges to friends via Game Center.

A new survival mode has also turned up, with waves of Titans to defeat, along with Facebook integration, so you can boast of your victories.

New achievements and leaderboards are also in place to boost your bragging rights.

A plethora of new items - rings, swords and shields - have joined the ranks, and on the lighter side, a range of "holiday helms" for appropriate dates.

Infinity Blade is on sale, too, at just $2.99 for US customers.

Chair's bestselling iDevice game is built on Epic's Unreal Engine, as seen in the Epic Citadel tech demo.