Fallout 3 was initially under development par Black Isle Studios, a studio owned par Interplay Entertainment, under the working titre van Buren. Interplay Entertainment closed down Black Isle Studios before the game could be completed, and the license to develop Fallout 3 was sold for a $1,175,000 minimum guaranteed advance against royalties to Bethesda Softworks, a studio primarily known as the developer of the The Elder Scrolls series.[3] Bethesda's Fallout 3 however, was developed from scratch, using neither van Buren code, nor any other materials created par Black Isle Studios. In May 2007, a playable technology demo of the canceled project was released to the public.[4]