Sigma Theory - Recently scientists have discovered a special technology "Sigma Theory", thanks to which the rulers of countries will want and be able to destroy the entire financial system, conquer many countries and gain immortality. To prevent the upcoming threat, you will have access to the management of experienced agents, tactical unmanned drones, new scientific developments and the disposal of available communications. You will be able to sign contracts with both lobbyists and militants, as well as politicians. Help your agents avoid danger every time they go on missions to save their lives.