Free Batman DLC dated, detailed

Eidos has dated and detailed the Insane Night Map Pack for Batman: Arkham Asylum, following an announcement-spoil by the in-game news ticker last week.

Due Thursday, the pack bundles two extra Challenge Maps and is free to download. All three versions - PC (out Friday), PS3 and Xbox 360 - receive the gift.

Inside the Insane Night Map Pack are Totally Insane and Nocturnal Hunter scenarios. The first tests Batman's straight-up fighting ability, while the latter needs a stealthy, unseen approach.

Batman: Arkham Asylum, in case you've been locked up, is brilliant - the best superhero game in ages, if not ever. Our Batman: Arkham Asylum review will tell you why.