"The Baldur's Gate series: Baldur's Gate I, Baldur's Gate: Tales of the Sword Coast, Baldur's Gate II: Shadows of Amn, and Baldur's Gate II: Throne of Bhaal have sold approximately 5 million units world-wide with sales still continuing"
"Baldur's Gate, released in 1998 has sold over 2 million units"
"Baldur's Gate: Tales of the Sword Coast, a Baldur's Gate expansion pack. It debuted at #1 worldwide and sold over 600,000 units"
"Baldur's Gate II: Shadows of Amn, was released in Sept. 2000 and continued the award winning story line of the Baldur's Gate series, selling over 2 million units so far"
"Baldur's Gate II: Throne of Bhaal was released, the expansion pack to the award winning Baldur's Gate II: Shadows of Amn, and the conclusion to the Baldur's Gate series, selling more than 500,000 units"
There we go.
"Shattered Steel has sold close to 200,000 units"
"All together, the various SKUs of the MDK2 series sold over 1 million units"
"Neverwinter Nights and its two expansions have sold close to 3 million copies worldwide so far"
[KOTOR] "has sold over 2.5 million copies to date"