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Use the voucher code GMG25-CFGY3-4THJI to get 25% off select titles at GMG. I’m assuming it won’t work on the games that have cashback or store credit offers. Not sure what the expiration date is.
Some games I got it work on:
Tryst: Premium Edition = $5.62 (Steam)
EVE Online – 30 Day Starter Pack = $3.75
Reign: Conflict of Nations = $1.50
Deus Ex: Game of the Year Edition = $1.50
Alice: Madness Returns (NA) = $4.50 (Origin)
Battlefield 2 Complete Collection (NA) = $4.50 (Will NOT activate on Origin)
Bulletstorm (NA) = $4.50
Dead Space 2 = $4.50 (Origin)
expires on Tuesday 18th Dec 2012 at 12GMT