Sony faces a new lawsuit over claims that it misled the gaming public with its advertising for Killzone: Shadow Fall.

The suit claims Sony employed "deceptive marketing" because Shadow Fall's multiplayer mode does not run at native 1080p, but instead uses "a technological shortcut that was supposed to provide 'subjectively similar' results."

Shadow Fall runs at 960x1080 with a high-quality temporal upscale, rather than at 1920x1080, otherwise known as 1080p.

The suit, filed by California resident Douglas Ladore, asserts that "temporal reprojection' is not the 'native 1080p' that Sony promised", and that Sony has failed to update its packaging, advertising, and messaging to reflect the game's true resolution. The suit accuses Sony of negligent misrepresentation, false advertisement, unfair competition and fraud in the inducement. It seeks US$5 million.

The firm behind this suit, Edelson PC is also pressing class action suits against Sega and Gearbox over Aliens: Colonial Marines, and EA and Sony over missing bundled copies of Battlefield 1943 for those who bought Battlefield 3.