In the blue depths, you use the technology similar to StarCraft, you use
tactics meaner than Red Alert ones, and you control your troops of metal.
You’ll battle, from with unknown gigantic multitude of squids, to other enemy
submarines and underwater bases. You’ll mine the metal, and other things
you’ll find useful for your operations and quick missions, and you have three
AI difficulty settings level.

After the strike of the Clark Comet in 2047 the surface of the earth was wiped
clean. Only a fortunate few tens of thousand humans survived, huddled in
subterranian vaults and submerged installations. Nature had yet another series
of blows to land; a twelve year winter was followed by rapid heating of the
earth’s oceans and the melting of polar ice. Water levels rose by more than 60
feet and survivors on land were forced back to subsistence levels. Gradually,
by the new century, the two world spanning powers that had defied the Comet,
and fought for world control, reestablished their power over the scattered
undersea colonies. Two rival civilizations arose, the White Sharks, anxious to
regain a position of world dominance and the Black Octopi, seeking balance
with the earth and prepared to enforce it with all the weapons at their
disposal. The sides grew even more powerful with the discovery of Corium 276,
a previously unknown element that had veined the Clark Comet and was capable
of powering even more powerful bases and craft. Trade began with the surface
and both sides used their technological magic to begin dominating large areas
of the world. As the sides grew they began to clash once more. Whilst at first
conflicts were limited to battles of words the White Sharks remembered the
destruction of their domination plans 60 years before. In 2105 they began
building a military machine to wipe the Black Octopi off the planet and secure
their position. The Black Octopi remained unaware, developing their technology
and gradually expanding their industrial base. Seeking new sources of Corium
in 2110 the Black Octopi discovered an abnormally high concentration in the
crater left by the largest Clark fragments to strike earth. Whilst exploring
the region several subs were destroyed by unknown forces and the Black Octopi
quickly sent a larger taskforce to investigate. What it found was an alien
race of creatures with advanced technology that aggressively attacked any
units in the crater area. Upon receiving this news the Black Octopi began
building their own military force to halt the spread of these aliens and
protect their holdings. By 2115 the White Shark high command, unaware of the
Black Octopi build-up, deemed their forces ready for war against their pre-
comet enemy and launched a pre-emptive strike. Reeling from the blow, but more
prepared than the White Sharks expected, the Black Octopi moved part of their
force to suppress the aliens and the rest to defend their civilian bases
against the massive attack. Thus, the battle for ‘blue’ supremacy has arisen.