Submarine Titans

Submarine Titans is a real-time strategy video game that takes place in the year 2115 after a comet has struck Earth,[2] driving two human factions, the militant White Sharks and the scientific Black Octopi,[3] to establish underwater bases and fight for dominance over the oceans.

[4] The comet also brought a mysterious alien race known as the Silicons,[3] who compete with the two human factions to collect resources and build a gate that would take them back to their homeworld.

[3] The White Sharks and Black Octopi require a supply of oxygen to power all their structures and must harvest metal and a special element called Corium to build submarines and facilities, while the Silicons must extract silicon from the sea floor to produce their basic resource and use metal to generate energy and power their regeneration ability.

[8][9] Submarine Titans was developed by Ellipse Studios,[10] an Australian video game company based in Adelaide and formerly known as Megamedia Australia.

[3] GameSpy editor Tim McConnaughy has mostly praised the game, citing very good premise and delivery, rich configuration options and a clean interface.

In this screenshot, a Silicon force is attacking a White Sharks settlement.