* Total War: Shogun (Sega) - 198,000 Units / $9.9 Million USD
* Call of Duty: Black Ops (Activision) - 170,000 Units / $9.7 Million USD
* Portal 2 Pre-Order (Valve) - 155,000 Units / $7.0 Million USD
* Homefront (THQ) - 130,000 Units / $6.5 Million USD
* Dragon Age II (Electronic Arts) - 105,000 Units / $6.3 Million USD
* Crysis 2 (Electronic Arts) - 94,000 Units / $5.6 Million USD
* Rift (Trion Worlds) - 123,000 Units / $4.9 Million USD
* Warhammer 40,000: Dawn of War II Retribution (THQ) - 155,000 Units / $4.6 Million USD
* Magicka (Paradox Interactive) - 421,000 Units / $4.2 Million USD
* Call of Duty: Modern Warfare 2 (Activision) - 66,000 Units / $3.9 Million USD
Portal 2 preorders ranked third in sales during that period, and will probably be the #1 seller during the second quarter of 2011. FADE also noted that most titles seeing price reductions of 65 percent or more realized more than 50,000 downloads during the sale, which have led many developers to offer high quality titles on sale to consumers.
"Valve's first release in well over a year has not only been well-received by the Steam community, but will be integral to growing the Steam user base. We will see significant growth in Q2 as major new titles such as 'Brink' and 'The Witcher 2' launch in the wake of 'Portal 2'." said Benjmain Schlichter, Director of Research & Analysis at FADE. "Portal 2 is likely to see over 1 million sales via Steam by the end of April, given its pre-order numbers".