Domark (by far the largest of the set), Simis and Big Red were combined into Eidos Interactive. At the time, Domark was known for 3D Construction Kit, Championship Manager, Hard Drivin, and many other games. History Beginnings and company growth Įidos plc, later to become the parent company of Eidos Interactive, was founded in 1990 as a company specializing in video compression and non-linear editing systems, particularly for Acorn Archimedes computers, and floated on the London Stock Exchange.įollowing a series of rights issues and a strongly rising share price, Eidos plc undertook a series of acquisitions in the games sector, starting with the acquisition of the PC games companies Domark Group Limited (Domark), Simis and Big Red Software in 1995 through a reverse takeover.