2K's confirmed it has delayed the Protector Trials DLC for BioShock 2 on PC.
No reason was given why it wasn't on Games for Windows by the publisher's Elizabeth Tobey when it already launched on PS3 and 360.
No new date has been given for its release, but Tobey said on the firm's forums we should "stay tuned".
Yesterday, 2K announced the final piece of DLC for BioShock 2, known as Minerva's Den. It'll release this fall for PS3, 360 and PC.