Portuguese developer Seed Studios has announced Under Siege, a real-time strategy title coming exclusively to PS3 in 2009.

The game's lead designer commented: "Under Siege features an original world, unique gameplay elements and a control scheme designed with a console controller in mind. We are also working on implementing a large number of multiplayer and community features with special emphasis on user generated content."

Not much is known about the new RTS, but Seed has released a couple of 'pre-alpha' screens.