Last August Ironclad Games and Stardock announced plans for not one but three micro-expansions for their hit space strategy game Sins of a Solar Empire. Last night G4TV's X-Play program had a live preview of the first micro-expansion, Entrenchment, which will add new defensive units and weapons to the game.

The preview also announced a release date for Entrenchment with Ironclad co-founder Blair Frazer announcing that it would become available via Stardock's Impulse client on Nov. 18. As previously reported the micro-expansions will be sold for $9.99 each. The second micro-expansion, which will add some new diplomacy features to the game, should be out two to three months after Entrencement.