The firm that saved Eidos believes it will have a return on its £84.3m purchase within three years.
Square Enix Group global president Yoichi Wada has told MCV that the British company is central to its plans to grow sales outside of Japan.
Indeed Wada says his combined group, which also includes video game and coin-op maker Taito, can go on to become the biggest games company in the world.
"Eidos as a company is excellent, with powerful properties and strong management. And by joining our group, we think that the pace of growth and success can now be accelerated," said Wada.
Full story can be found over at MCV.