Videogamer writes: "You can't fault Stardock for its ambition. Not content with introducing hectic real-time action into the traditionally staid world of the 4X strategy with one of the surprise hits from last year, Sins of a Solar Empire, now it's intent on re-writing the rulebook for PC game expansion packs as well. Normally, expansion packs try to add to the story of a game, but what do you do when your game has no conventional narrative to expand? Entrenchment is Stardock's answer to this conundrum, a 'micro-expansion' that doesn't seek to alter the game's history or story, but instead alters the balance of the game's mechanics by introducing a whole new style of gameplay through the addition of new units and a new research tree."
