UPDATED: ALL CODES HAVE NOW BEEN REDEEMED.
Enjoy and play Gears game on your Xbox One or Xbox 360 for the lucky ones.
Gears of War
MTMX6-WXQP7-DWRM2-_DDHD-R4DFZ
A letter D-J.
Gears of War 2
4HVGG-JGDYQ-4_QF9-QC7QC-VY4WZ
A number.
Gears of War 3
Q2CX7-3YYWP-T2_QR-CC6T4-MKWPZ
A number.
Gears of War: Judgement
CG234-H4YRC-CG3QW-7RYYP-QDHV_
A letter from T-Z.