Ritual Entertainment is about to release four extra maps and a new gameplay mode for Sin Episodes, at no extra charge for auto-download via Steam (the "no charge" bit will no doubt make many console owners jealous). The four new maps will be dedicated to the new mode called "Arena"--which is a single player experience akin to many games' survival modes--and will be designed around typically generic first person shooter situations like an office, a turbine room and a processing plant. Shawn, the lead game designer of Sin lays it down on his blog; "It's an infinitely repayable single player mode where you continually try and beat your high score". Our translation: "shoot loads of people and then obsess over the number of enemies you shot in the groin".
Other bits mentioned on Shawn's blog include a comprehensive stat tracking system, enabling yourself and other players to compare their groinshot score, the mention of the impending release of a Software Development Kit (SDK) and a Sin development Wiki, and absolutely no news about when Episode 2 is going to hit Steam; Shawn got a little excited and forgot to give us any information beyond saying that he'd "be on the look out for some Episode 2 media in the near future" if he was you. We want dates dammit!