French video game publisher Ubisoft announced its plans to open a development studio in Quebec City in April 2005.

[5][6] In June 2008, Ubisoft Quebec announced that it had established a computer-generated imagery production arm that would work in conjunction with distributor Guillemot.

Forty-eight employees were transferred to Ubisoft Quebec, while another 6–7, including the acquired studio's manager, departed.

[17] In December 2018, Mike Laidlaw joined the studio as creative director, having previously stepped down from the same position at BioWare,[18] before departing again in February 2020.

[26] The title is the adapted version for mobile devices of Tom Clancy's Rainbow Six Siege, a successful tactical shooter game belonging to the Tom Clancy's Rainbow Six series, which Ubisoft Montreal released in December 2015 for PC and consoles.