It's a game that was a big hit last June for Activision and now the open world action game Prototype is on sale for one day only at Direct2Drive as part of their 24 Days of Christmas sales promotion. From now until 1 pm Eastern time, the game can be downloaded and purchased for $19.95, a 50 percent sales cut from its normal Direct2Drive price.

The over-the-top action got solid sales but some mixed reviews from critics. The game comes from developer Radical Entertainment but at the moment there's no word on what game the development team is working on next.