Here’s some news to put a smile on your face: The Dark Knight’s criminally crazed arch-nemesis, available as a playable character in the Sony-branded version of Batman: Arkham Asylum, will be free. Of course, we already knew this, but now Eidos has officially confirmed the PS3-exclusive DLC will be offered completely gratis when the game hits (bams! and pows!) store shelves later this August.

No word yet on whether the standalone challenge mode will also allow you to kidnap Gordon and imprison him in a dilapidated amusement park, forcing him view giant pictures of a paralyzed Batgirl in various states of undress in an attempt to drive him insane, but here’s hoping.