Korean outlet MTN reports that the game, known as Project H/Skyline internally, has been canceled following a round of layoffs in October last year. That's not the only affected game, as another title codenamed Project Pantera, based on NCSoft's Lineage franchise, has also been canceled.

The Horizon game that has now been canceled is the under-development Horizon MMO. This title was being developed by NCsoft and would have been an online MMO set within the Horizon: Zero Dawn universe. The title was reportedly going to be a mobile title, available on mobile gaming devices and PlayStation 5, but it is no longer planned for release.

Sony reportedly shelves yet another one of its live-service games, marking its 11th such project cancellation in only three years.