Strike Suit Zero $11.20 after voucher at GMG. 24 Hours Only By w00py | February 28, 2013 0 Comment Strike Suit Zero is on sale for $13.99 (30% off) at Green Man Gaming. Use the voucher code GMG20-P4DLK-FKYRS and the price drops to $11.20. The game uses Steamworks, so Steam activation is required. The deal will last for 24 hours only.