The Call to Power series was developed by Activision after they won the legal rights to Avalon Hill's "Civilization" name for their product away from Microprose (for who Sid Meier worked at the time before splitting away and creating Firaxis, which produced Alpha Centauri, the spiritual successor to Civilization II. The CTP series was NEVER seen or touched by Sid Meier, and instead this series is the reason that SMAC did not bear the title Civilization. It could also have been a small part of the death of Microprose. Now that I have exclaimed the truth for you all, this game is fairly decent if you've played all the other Civ games and wanted to try something new but the same. It is still a far cry from the quality of the Sid Meier series.
