Metal Gear Solid: Ground Zeroes is the next entry in the classic Metal Gear Solid series, as announced by Kojima Productions today at a Metal Gear 25th anniversary event in Tokyo, according to a GameSpot report.

Attendees of the event were treated to a 20-minute demo of the brand new Fox Engine title, which starred a gentleman named Snake who sneaks around an open world-looking setting. Series creator Hideo Kojima took Snake around the environment, showing some stealth mechanics and shooting mechanics, as well as Snake's ability to commandeer a jeep to travel around the world or call in a helicopter evac.

As expected with these blockbuster announcements, no other details surfaced. Those who attended were barred from recording any part of the demo, so still don't know what the game looks like aside from that piece of artwork above. We also still have no release information -- or platform information. Will it be a current-gen title? (I'd bet yes.) Or is it a next-gen game?

And who is this "Snake" in the demo? Solid Snake? Naked Snake? Old Snake disguised as Young Snake? Another clone?

Of course, if we hear anything, we'll keep you posted. For now, get excite.