The investment will be used to fuel Behaviour's growth and help it establish a presence in the Chinese market.
The news follows the pair previously announcing that they are co-developing Game of Thrones game for mobile, which is based on HBO’s show rather than the books.
"As a Montreal-based organisation, we understand that the gaming industry continues to grow rapidly on every continent", said Behaviour Interactive CEO Remi Racine.
"This strategic partnership with GAEA will fuel our global growth on all platforms.”
GAEA CEO Yann Wang added: “This is an important investment decision for GAEA. Behaviour is a world-class organisation that is uniquely charming. Many of us here are big fans of their games.
"Behaviour possesses a wealth of experience in developing triple-A games. Combining innovative gameplay with high calibre craftsmanship, they have built a loyal fanbase with the quality products they carry under their belt."
Behaviour Interactive has previously collaborated with Disney, EA, Ubisoft, Microsoft, Warner and more recently NetEase.
The latter Chinese publisher's game Identity V utilises Dead By Daylight’s asymmetrical survival gameplay, with the deal to make it happen being reached between the two in May of this year.
Behaviour’s game director Mathieu Côté and Dead by Daylight product manager Alex Lin came onboard the project as gameplay advisors as part of the deal.
Identity V launched globally on July 5th after being available in China the month prior and hit the 100 million download mark a day later.