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Bundle Stars has the Ultiate Sci-fi Bundle live on their site. Pay $3.52 for 9 Steam games.
Bundle inclues:
Data Jammers: FastForward
Ion Assault
Planets Under Attack
Project Freedom
Really Big Sky
SpaceChem
SpaceChem: 63 Corvi DLC (add-on)
Sword of the Stars II Enhanced Edition
Weird Worlds: Return to Infinite Space
Click here to see the Bundle Stars Ultimate Sci-fi Bundle deal.