Forgotten Empires is an American video game developer based in Cincinnati, Ohio.

It specializes in creating real-time strategy (RTS) games, particularly within the historical genre.

Around the same time, Microsoft was in the process of creating a remastered HD edition of Age of Empires II.

[2] The mod was successful, prompting Microsoft to collaborate with the group to transform their project into an official expansion.

Subsequently, in collaboration with SkyBox Labs, the expansion titled Age of Empires II HD: The Forgotten was released a few months later.