When the folks that run Direct2Drive posted up their Thanksgiving-themed PC game download sale, they held out on one game that would be revealed today to "celebrate" Cyber Monday 2009. Now that game has been revealed and will be sold at 75 percent off its normal price for the next 12 hours.

And just what is that mystery game? As it turns out it happens to be the original Mass Effect. BioWare's first game in their sci-fi RPG series can be yours for a mere $5 if you act quickly. Five bucks is a pretty tiny amount to pay for one of the best games in the last few years.