First episode of iPhone survival horror series Fallen is chopped out

There's nothing quite so risky as attempting to make an episodic game.

Even if the first release is successful, sales tend to fall away over time - whether gradually or steeply - even though each episode takes the same amount of resources to make.

So good luck to 7th Sense, which has just released Fallen EP-1, the prologue to its Fallen saga.

The 17+ age rated survival horror game, which uses a Resident Evil-style 2.5D perspective, has you playing as Roman Mendez, who finds himself in a prison where nasty things have started to happen.

Of course, your goal to to get Roman out of gaol as quickly as possible, but to do so there'll be a lot of fighting and evil to overcome.

Character movement is controlled using a virtual pad, and there's what 7th Sense calls an adhoc fighting system, as well as special interactions that use the iPhone's and iPod touch's accelerometer and multi-touch.

Awesome graphics and lighting are promised across 40 locations, while the story's driven by cinematic cut-scenes and atmospheric audio.

You can get more details, as well as wallpapers and music, from the Fallen website.