This wiki arose as a spinoff from the Civilization Games Wiki, where it didn't fit in perfectly. That covers the series of games designed largely by Sid Meier but extends to "Colonization" and several spin-off or related games, both commercial and free.

Another site in the Wikia family, with similar purpose to this one, is the Freeciv site, which not only gives information about the various versions of Freeciv (a free-to-play imitation of "Civilization") but also collates the work of the ongoing development of the game. This wiki can do just that for current and future work on Imperialism sequels.