VE3D has confirmation of the delay of the defensively-oriented expansion from Stardock. Though its release has been delayed, Entrenchment will be released early to pre-ordering customers as part of a beta test to help balance the expansion. However, no date for the pre-order beta has been provided.

Entrenchment adds a Starbase defense platform to each race, giving them armored bases with a variety of weapon, and upgrades that make them capable of defending an entire planet. Adding to that are turrent upgrades, mine fields and a "Subspace Inhibitor platform" which will slow down nearby enemy ships.

Entrenchment is the first in a series of micro-expansions that will later include new ships, technologies, and diplomacy features. Come January, Entrenchment will be available on the Sins of a Solar Empire website and Stardock's Impulse digital distribution platform.