Space Hulk Ascension ascends further today, as the Imperial Fists add-on is now available for Full Control's turn-based strategy game. The Windows, OS X, and Linux expansion is now on Steam, adding 15 new story missions and 20 flash missions to the mix. "We can't wait for our fans to experience all the new content," said Thomas Hentschel Lund, CEO of Full Control. "On top of the new missions, the Tarantula Turret adds a whole new layer of strategy to the game. We think players will relish the opportunity to test it out!" Here's more on what this is about:

The primary objective of the Imperial Fists, is to prevent the Genestealers breaking through a defense zone and attacking the flank of the beachhead. As the main campaign expands, the Terminators slowly cleanse areas of the Space Hulk to prevent the Genestealers from building a larger force. Meanwhile, hidden in the Space Hulk, the Genestealers have started massing into a vast force. During the campaign the Imperial Fists are armed with the ferocious Tarantula Turret; a powerful automated weapons platform that can decimate the Genestealer hordes in seconds.