The original has enjoyed something of a mixed reception so far (including a rather unhappy write-up elsewhere on this website today), but Climax is already developing a sequel to Xbox exclusive RPG Sudeki according to a job posting on the company's website.
Although the developer is not seeking direct help on the project, the title did come up in connection with a Business Development post, which included the following line: "Climax is developing a wide range of games for leading publishers including: Codename Avalon, ATV Fury III, Sudeki 2, Moto-GP 3, The Final Option, Hot Wheels, Delta Force: Black Hawk Down, Tron 2.0, Dragon Wars and other exciting projects yet to be announced."
That's by no means absolute confirmation of a sequel - we'd imagine that the game's fortunes at retail will have something of a say in that - but it's the closest indication so far. The original Sudeki, recently released in the US, is due out in Europe on August 27th from Microsoft.
