The latest bundlestars bundle has just gone live (until 31st Oct). There are still other Bundlestars bundles available as well:
Blaze of Glory (15 days left)
Ultimate Commandos (8 days left)
IndieJam 3 (8 days left)
Indie Rush (22 days left)
Masters of Strategy (23 days left)
Atomic Bundle (23 days left)
The latest one includes the following games (all with Steam codes plus promo code for Warframe):
1) ... Warframe
2) ... GTR Evolution (includes base game)
3) ... Dark Sector
4) ... Cannon Fodder 3
5) ... Septerra Core: Legacy of the Creator
6) ... Space Pirates and Zombies
7) ... 1953 KGB Unleashed
8) ... Guardians of Graxia + Map Pack DLC
9) ... Guardians of Graxia: Elves & Dwarves DLC
Check all deals HERE