Green Man Gaming is currently offering a 20% off coupon code for US/Canada-only pc digital download purchases of Mass Effect 3 ($48) and Mass Effect 3 Digital Deluxe ($64) editions. This is the largest discount we've seen since the game's launch on Tuesday. Use TAKEE-ARTHB-ACK20 on the checkout page to receive this discount. The code expires on Sunday, March 11.
Note that GMG is a UK-based digital download service. If you use a credit card for payment, you may be charged a currency conversion fee by your credit card company.
Unfortunately, you cannot use this code for European preorders.
Upon purchase, you will receive an activation key that you can then redeem on Origin.