F.E.A.R. 3 $3.08 after voucher at GMG. Activates on Steam By w00py | August 10, 2012 0 Comment F.E.A.R. 3 is on sale for $3.84 (75% off) at Green Man Gaming (GMG). Use the voucher code PCGMR-GREEN-SUMMR to save an additional 20% off your order, which makes the game only $3.08. The game uses Steamworks so you’ll have to activate it on Steam. The 20% off voucher code expires on August 16, 2012.