Civilization: Call to Power is a PC turn-based strategy game developed by Activision as a successor to the extremely successful Civilization computer games by Sid Meier. It was ported to Linux by Loki Software.A sequel, Call to Power II, was released 18 months after the original. The sequel could not have "Civilization" in its title because Activision did not have a license for the "Civilization" name for a second game.