Hardsuit Labs has ceased supporting Blacklight: Retribution will shut down its PC servers on 11th March, 2019.
In a recent post (via ResetEra) on Steam, the developer said while it'd got a lot of "joy" out of Blacklight, "the reality is Hardsuit Labs has been engaged for some time now in some very interesting projects that require the full focus of the development teams and leadership".
"All good things must come to an end, and so it is with Blacklight: Retribution," the post says. "Thank you so much for your loyal support, and love over the years. From the initial PC Closed Beta in November 2011 to today, it has been a great 7+ years. The joy that we got out of Blacklight: Retribution is a testament to you the fans; your loyalty, dedication, support, and ultimate willingness to try our fun, quirky FPS."
Consequently, the team will no longer be "patching, updating, or doing technical support for Blacklight Retribution" on either PC or PlayStation 4. Account migration has now officially shut down, along with the official support site.
As a final hurrah, all items in the PC store have been made free, and the team hopes players "continue to enjoy the game and items up until the PC servers are shut down on March 11th, 2019". As there are "no game servers being hosted for it", the PS4 version will continue to operate "as-is".
"As a studio, Blacklight: Retribution will always have a special place in our hearts," the post concludes. "One that is largely due to our amazing community, so thank you to all the Blacklight: Retribution fans out there."