Dishonored and XCOM: Enemy Unknown. The meticulous murder-em-up sold 460,200 units, according to the NPD, while the XCOM revamp from Firaxis sold 114,000 units.
Dishonored and XCOM: Enemy Unknown launched on October 9 for Xbox 360, PS3, PC and through digital distribution, and later shared shelf space with big hitters like Assassin's Creed 3, NBA 2K13, Forza Horizon and NBA Baller Beats (kidding).
The NPD only chronicles boxed retail sales in North America, so we don't have a full picture of the sales performance of either Dishonored or XCOM: Enemy Unknown. We already followed up with 2K for XCOM specifics, but the publisher told us it does not "comment on sales figures."