[4] Unlike MicroProse, Firaxis Software aimed at being a "design house", leaving manufacturing, marketing, and distribution of their games to outside contractors.

[8] The deal, assisted by broker William W. Whitty Jr. of MacKenzie/O'Conor, Piper & Flynn Commercial Real Estate Services, was expected to be completed by March that year.

[20] In November 2004, Infogrames, at the time owner of the Civilization franchise and parent to the series' publisher, sold all intellectual property (IP) to an undisclosed buyer for US$22.3 million.

[23] The publisher announced that the franchise would be managed by their 2K label, which was founded the day before, and that Firaxis Games would stay in charge of the series' development.

[24] In March 2005, NDL announced a partnership with Firaxis Games, wherein their Gamebryo engine would be used for the development of Civilization IV, which was to be released later that year.

[27] Meier and Briggs both expressed that the acquisition saw a great opportunity for Firaxis Games in terms of creative development and marketing capabilities, and were fortunate to have re-gained full control over the Civilization franchise.

[32][33] The event was held from September 27 to 28, 2014, at a hotel in Hunt Valley, and included meet and greets with the company's staff, a presentation titled "An Evening with Sid Meier", and early playtests of Civilization: Beyond Earth.

[39][40] By December 2015, Firaxis Games expanded their Sparks headquarters, which they moved to in 2009, to 40,000 square feet (3,700 m2), and employed 40 new staff, totaling to 180 employees present at the company.

[43] On February 17, 2023, it was announced that Midnight Suns creative director Jake Solomon and longtime Firaxis boss Steve Martin were exiting the company.