Portal, Valve's popular hit puzzler, is finally returning to the spotlight — but not in the form you might expect.

Headup Games has announced the next entry in its Bridge Constructor series will be a Portal mash-up. The standalone title will see players leveraging the portal technology from Portal's Aperture Laboratories to put a new spin on Bridge Constructor's main mechanic: building bridges to usher vehicles from point to point.

Bridge Constructor Portal will blend the laws of structural engineering and technology straight from Aperture Laboratories into an exciting new game experience, all under the demanding gaze of GLaDOS.

It may not be the Portal sequel that fans have been hoping for since Portal 2's 2011 release, but it's certainly an unexpected mash-up. If the game piques your interest, Headup Games says that Bridge Constructor Portal will launch on December 20 for PC, Mac, Linux, and mobile devices. Console versions are just around the corner as well, with a planned launch in early 2018, Headup says.