Sega Technical Institute
From Sega Retro
The Sega Technical Institute was a video game development division of Sega based in the United States, unlike the AM divisions which were based in Japan.
STI was at one time an elite organization within Sega of America that developed well-received games such as Die Hard Arcade (the result of a team-up between STI and successful arcade game developers AM1), Comix Zone, Kid Chameleon and The Ooze. STI's focus was to create character properties that could be built into a franchise.
Although the original Sonic the Hedgehog was developed in Japan by Sonic Team, the Sega Technical Institute held the principal responsibility for Sonic the Hedgehog 2, assisted by members of Japanese development teams, including several members of the original Sonic Team such as Yuji Naka and Hirokazu Yasuhara. However, only the Japanese members of STI developed Sonic the Hedgehog 3 and Sonic & Knuckles; the American developers working on Sonic Spinball instead.
Game development luminaries Mark Cerny and Stieg Hedlund were at one time part of the organization.