Warhammer 40,000: Mechanicus - ‘Upgrade to Omnissiah Edition’ includes:

• The atmospheric soundtrack featuring the highly acclaimed music of Mechanicus
  
• The stunning digital artbook containing an array of new and previously unseen concept illustrations and art from the development of the game
  
• Enhance your close-quarters arsenal with the hard-hitting power of the Arc Scourge.
  
• NEW: ‘Deus Ex Mechanicus’ by Andy Chambers - A Warhammer 40,000 short story – “On the dead world of Naogeddon, mysterious tombs, missing explorators and deadly defenders cause trouble for the Adeptus Mechanicus. But the biggest danger might come from within…”

May the Omnissiah protect!