The first underwater megacity was created by Nebula Conglomerate in the year 3005 to develop and test weapons to aid the war.

Within 10 years it was abandoned, and the researchers living inside the city vanished.

An expedition to this city was launched to try and find out what happened to the 2 million researchers living inside the city. Everything seems to be intact and working, but...

Something has awoken. Something is in the water. Something is coming. Something big.