Think! was a game design created by Tigress Marketing, coded by The RamJam Corporation and originally published by Ariolasoft, before being re-released on budget by Firebird in 1987.
The game was designed by Chris Palmer with some help from David Bishop and Beth Wooding.
The RamJam Corporation were given the task of implementing the game design. Tony Barber wrote the code, with Peter Tamlyn handling the AI (written on a Sinclair QL). Simon Dunstan created the iconic graphics.
Tigress designed a small number of other games, including Deactivators (again for Ariolasoft).