Kaboom Studios Limited (formerly Geoff Brown Holdings Limited) was a British holding company established by Geoff Brown in January 1997 to pursue video game development investment.

In December 1996, Geoff Brown acquired a 75% stake in Silicon Dreams Studio for at least £500,000.^[1] Silicon Dreams Studio was founded by Brown in March 1994, as in-house development team for his publishing company, U.S. Gold, until the entire CentreGold umbrella (including U.S. Gold and Silicon Dreams) was sold to Eidos Interactive in April 1996.^[2] In January 1997, Brown also acquired Attention to Detail, and opened Geoff Brown Holdings to manage the majority ownerships in the two studios.^[3] A motion capture studio, Audiomotion, was established under the Geoff Brown Holdings umbrella in 1997,^[4] and Pivotal Games, another developer, was acquired by the company in August 2000.^[5]

In 2003, Kaboom Studios faced major financial issues, resulting in the closure of Attention to Detail and Silicon Dreams Studio on 28 August 2003 and 3 September 2003, respectively.^[6][7] Meanwhile, Audiomotion's Mick Morris performed a management buyout for the company, in order for Audiomotion to "reboot" itself and avoid closure.^[4][8] Kaboom Studios went into receivership on 9 September 2003,^[7] with all assets being transferred to Ernst & Young, of which the still-active Pivotal Games was put up for sale.^[9] On 29 September 2003, SCi Games acquired Pivotal Games from Ernst & Young for a total of £2.36 million.^[10]