This pack will upgrade you from Stellaris: Standard Edition to the Galaxy Edition, which will provide you with the following extra content:

• Digital Original Soundtrack - The Stellaris soundtrack delivers two and a half hours of original music, including bonus tracks and alternate versions not included in the game. Composed by Andreas Waldetoft with appearances by the Brandenburg State Orchestra and Mia Stegmar, listeners will hear themes meant to evoke discovery and far-reaching exploration through the vast expanse of space through the fusion of orchestral and electronic music. MP3 and lossless FLAC are included.
• Exclusive Alien Race (Cosmetic DLC) - Colonize the unknown and build a glorious spider empire! An exclusive alien race will be added to your game with a unique arachnid design. When your friends ask how you obtained these new spacefaring spiders, be sure to tell them you found the deal on the web.
• Digital Collector’s Book - Join the creative team behind Stellaris to learn how the game's aesthetic was designed and realized for Paradox's most visually unique game to date.
• Stellaris: Infinite Frontiers novel by Steven Savile (ebook) - From best-selling author Steven Savile comes an original novel based on the science-fiction setting of Paradox's Stellaris. When the Commonwealth of Man receives proof that they are not alone in the universe, humanity is divided: should our species seek salvation in potential friends among the stars, or prepare for an inevitable war? 
• Exclusive Avatar and Galaxy Forum Icon - Show your love for Stellaris on the Paradox Forums and other social networks, and Make MySpace Great Again!
• Signed Wallpaper - Pay your respects to the pioneers who ventured forth into the unknown with this desktop wallpaper signed by the Stellaris development team.