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Bundle Stars has the Reboot Bundle 1.0 on sale at their site. Price is just $2 for the first 48 hours of the sale. Not sure what the price jumps to after the 48 hours.
Includes:
Dark Sector
GTR Evolution
Space Pirates and Zombies
Dino D-Day
Dream Pinball 3D
SpaceChem
SpaceChem: 63 Corvi DLC
All games activate on Steam.