Several studios including Massive Entertainment, High Moon Studios, Radical Entertainment, Secret Lair Studios / Studio Ch'in (based in Seattle and Shanghai) and Swordfish Studios were acquired and integrated into Sierra throughout 2005 and 2006.
В 2005—2006 годах были куплены либо переданы от материнской компании Vivendi студии "Massive Entertainment", "High Moon Studios", "Radical Entertainment", "Secret Lair Studios" / "Studio Ch’in" (базируется в Сиэтле и Шанхае) и "Swordfish Studios".