 The game also had a sequel titled "Vortex" and also a book.The player takes on the role of Private Drew Griffin, an army medical student in the year 2057 who is recruited by the UN on a secret mission to an alien world where water is scarce.During the mission briefing Drew discovers that an advanced environmental simulation program called Earth-5 has predicted that there are only five years remaining before irreversible ecological damage caused by industrialisation, pollution and the overuse and destruction of natural resources will cause the Earth's demise.