505 Games has unveiled an underwater third-person shooter called Deep Black for PS3 and Xbox 360.

The game's due in Q1 2011 and hopes to blend science fiction, espionage and bio terror - presumably not a fear of yoghurt.

Plenty will be made of the physicality of water, not to mention the fanciful equipment used within it - an underwater jet pack with integrated harpoon sounds fun.

Russian developer Biart Studio is at the wheel and has experience with nautical-themed games, having produced Spearfishing and Reef Aquarium Minis before now.