Developed by Ironclad Games, Sins of a Solar Empire is a real-time strategy game that adds an extreme amount of depth normally only seen in turn-based releases.

Specifically, Entrenchment promises to bring fans a Starbase defense platform for each race (extremely powerful and armored bases housing a variety of weapons and other upgrades capable of defending an entire planet), turret upgrades for each race to make them more powerful (not only stronger than the current versions, but also upgradable with long-range weapons), mine fields and a Subspace Inhibitor platform that will slow enemy ships within its range.

“One of Stardock’s key strategies for success with past games has been the incorporation of player feedback from our open betas,” said Stardock President and CEO Brad Wardell. “We want fans to get the most of this expansion and are making sure we’re delivering the best content possible.”

The additional time will allow for Ironclad’s development team to incorporate feedback to date and allow for another round of beta testing.

Ironclad’s Blair Fraser stated, “It’s of paramount importance to everyone that what we’re releasing is the best and most robust content we can.”

Ironclad has two additional micro-expansions in development as well. One of which adds new diplomacy features to the game and another that will add new technologies and ships.

The expansions are being developed to prevent fracturing of the multiplayer community. If both players have a given expansion pack installed, the features are available, but if one does not, the expansion pack features are disabled for that particular game.

Sins of a Solar Empire: Entrenchment is currently in development and will be released Feb. 24, 2009 for $9.95 via Stardock’s Impulse digital distribution platform.