The fourth day of one-day only sales is live, and brings some major and minor discounts to the Games on Demand service. This promotion is a great way for MS to provide savings for consumers while also getting them used to the idea of buying retail games digitally. Bioshock Infinite is $40, while Gears of War: Judgment and Metal Gear Rising: Revengeance are $30 each, while Tomb Raider and XCOM: Enemy Unknown are $20. The biggest savings offered up is Hitman: Absolution for $10, bringing it to around the level of the average Steam sale price a few months ago. Tomb Raider is easy to recommend for $20, while Hitman: Absolution is a must-buy at $10. It will likely never be cheaper than that digitally.