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Bundle Stars has a Quickfire Indie Bundle available for $3.49.
You get the Warframe $10 Platinum Package, which is a credit for a Free to Play game. Plus you get 8 Steam games.
The Steam games are:
GTR Evolution
Dark Sector
Septerra Core
Space Pirates and Zombies
1953 – KGB Unleashed
Cannon Fodder 3
Guardians of Graxia
Guardians of Graxia: Elves & Dwarves DLC