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Bundle Stars has the The FPS Bulletproof Bundle on sale for $4.19.
Includes:
SickBrick
Dead Effect
Dementium II HD
Ubersoldier II
Fancy Skulls
NecroVisioN + NecroVisioN: Lost Company
Parkan II
Heavy Fire: Afghanistan
Axis Game Factory’s AGFPRO v2
AGFPRO – Drone Kombat FPS Multiplayer DLC
All activate on Steam.