Tiertex Design Studios Limited was a British software development company and former video game developer based in Macclesfield, England; it was founded in 1986, focusing on porting games to home computers and handheld platforms. It developed over 200 titles, including many under license from companies such as THQ, Disney Interactive and BBC Multimedia. In later years, it struggled with the move to the seventh generation of video game consoles, and so pivoted to developing USB development boards and displays for industrial purposes. On 5 August 2021, the company closed its doors.