It created the Go series of turn-based puzzle games for mobile devices based on former Eidos Interactive intellectual properties.

[3][4] Square Enix Montréal began with four staff members—Singleton and three developers from IO Interactive—but planned to grow beyond the single Hitman team to have multiple concurrent projects with up to 150 employees.

The company has not released information on its future plans, though based on Square Enix's philosophy of each studio covering its own niche well, they are expected to continue making mobile games.

Its recent hires included indie developers Teddy Dief, designer of Hyper Light Drifter, and Renaud Bédard, sole programmer of Fez.

[9] The games use simple touchscreen gameplay mechanics to move the main characters from each screen around a minimalist board game-like puzzle.

[9] With each entry, Square Enix Montréal distills and reinterprets the parent series' essential gameplay elements for the board game format.

[6] They also viewed the critical response to Deus Ex Go as an indication that the studio had thrice succeeded in its intention to translate an older console intellectual property to mobile with its own personality.

[16] He said that the series "was a great adventure for us as a studio", but that the premium mobile returns were disappointing, saying "it's sad to see that our games are only played by a small slither of the population because of the price point".

[17] The developer announced Hitman Sniper Assassins in March 2021 and an augmented reality adaptation of Space Invaders, licensed from Taito.

[18][19] Also directed by Naud, Square Enix London Mobile focused on publishing and external development, with franchise partnerships in the Tomb Raider and Avatar: The Last Airbender properties.

CDE Entertainment's director, Phil Rogers, cited growth opportunities with AAA games developed at its other studios, Eidos-Montréal and Crystal Dynamics.

[27][28] On November 23, the studio announced Deus Ex Go, Space Invaders: Hidden Heroes, Arena Battle Champions, and Hitman Sniper: The Shadows would be discontinued in January 2023.