It took a long time for anyone to step up to the superhero plate and deliver not only a solid game based on a popular comic book character, but also one of the best new IPs in action-adventure gaming of this (and arguably every other) generation. But that's exactly what Rocksteady did with their Arkham series of Batman games: Batman: Arkham Asylum and of course, Batman: Arkham City.

That isn't to say other dev studios haven't had a decent crack, and in this industry there's also a problem with getting big, confident and competent ideas across the pitch-to-publisher line as Day 1 Studios (F.E.A.R., Fracture) discovered with their own Batman project.

A source at Day 1 recently let loose an internal video of animation tests for said project to Siliconera, which was based on the Batman one-shot Gotham by Gaslight - a tale set in the 19th century where Batman tracks down the notorious Jack The Ripper.

The animation test shows off a very Gothic Batman, replete with great cape physics and a fully realised 19th century Gotham, though it obviously lacks a lot of detail. It certainly looked promising, maybe now that Batman is big videogame business, this bad boy could get picked up again... what do you think Warner Bros. Interactive?

Watch the streaming video from Siliconera emebedded below.