Starhawk servers were shut down June 30th, 2018
I'm pretty sure I'd seen a server-shutdown announcement some time ago that included Starhawk but it may have been before I even started this site. So, thanks to GamerFirebird90 who made the submission to remind me! That said, the game and DLC are still available to download if anyone wants to play the single player component. For now I'm just going to house this info here in the forums and once the game gets pulled I'll work up a full page.
The official announcement that's been sitting on the game's PSN store page reads:
“Multi-player features for Starhawk will be terminated and no longer be available after June 30th, 2018. The single-player campaign and any other offline content will continue to be playable.”
No word on a complete delisting but it can't be too far off, maybe by the end of the year? I'll try to keep an eye on the PSN page but if someone else catches when it disappears, reply here and let me know.