Square Enix has announced the release of a playable Supreme Commander 2 demo via Valve's Steam platform.

The demo features two levels of the tutorial as well as two missions for the United Earth Federation (UEF), one of the three factions of the Colonial Defense Coalition.

Strike While Cold

The Cybran invasion force is on the run. Sensors have picked up a number of operational Cybran Mass Extractors off the coast of the Weddell Strait. Players will need to explore the islands in the strait and successfully destroy the extractors.

- Features: Naval Battle, Kraken Experimental.

Titans of Industry

After refusing orders and refusing to surrender their Armored Command Unit, players are now public enemy #1 in the UEF. Colonel Rodgers has targeted New Cathedral, a colony where the players' wife and child reside - they will need to take the most direct route to defend the colony. Unfortunately, that means travelling through the ruins of the Boolon Industrial Complex.

- Features: Air and Land Battle, Fatboy 2 Experimental.

Supreme Commander 2 will be released for PC on March 5, with the Xbox 360 version to follow on March 19.