Crysis 3 hasn't even been on shelves for a month, but it's already available with a 33% discount ($39.99) via GameStop as well as 30% off directly through EA, including the Digital Deluxe Edition which includes Crysis 2: Maximum Edition for $55.99. Meanwhile, Steam has Max Payne 3 for $13.59, Origin offers the Mass Effect trilogy for $25, GameFly knocks half off various Call of Duty titles and Green Man Gaming has a "limited" offer of Dishonored for $32.99 as well as War of the Roses, Killing Floor and Red Orchestra 2 for $4.99 each.

Steam
84 Max Payne 3 $13.59 (66% off)
76 Arma II: Complete Collection $19.99 (50% off)
88 Football Manager 2013 $19.99 (50% off)
84 Age of Empires III Complete Collection $19.99 (50% off)
71  Velvet Assassin $1.24 (75% off)
76  Greed Corp $2.49 (75% off)
81  Vessel $7.49 (50% off)
Primal Carnage $4.99 (67% off)
Max Payne 1 & 2 $5.09 (66% off)
Syberia Bundle $3.74 (75% off)
Gatling Gears $2.49 (75% off)
Miasmata $5.10 (66% off)
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Amazon Digital
Guns of Icarus Online $9.99 (50% off)
Ticket to Ride Pack $6.49 (74% off)
DotEmu Bundle $9.99 (89% off)
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GameStop
78 Crysis 3 $39.99 (33% off)
82 Supreme Commander Gold $9.99 (50% off)
81 Titan Quest Gold $4.99 (75% off)
71  Red Faction: Armageddon $9.99 (50% off)
Red Faction II $4.99 (50% off)
Red Faction $4.99 (50% off)
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GamersGate
81  The Witcher: Enhanced Edition Director's Cut $2.50 (75% off)
83  Sonic Generations $10.18 (66% off)
Sword of the Stars Complete Collection $6.23 (75% off)
Tryst $8.50 (66% off)
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GameFly
81 Call of Duty: World at War $9.99 (50% off)
94 Call of Duty 4: Modern Warfare $9.99 (50% off)
88 Call of Duty: Modern Warfare 2 $9.99
81 Call of Duty: Modern Warfare 3 $29.99 (50% off)
82 Call of Duty: Black Ops $19.99 (50% off)
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Green Man Gaming
77 Killing Floor $4.99 (75% off)
Dwarfs!? $2.49 (75% off)
74 Red Orchestra 2 $4.99 (75% off)
91 Dishonored $32.99 (45% off -- "limited" offer)
War of the Roses $4.99 (75% off -- ends Sat.)
20% off via coupon code "GMG20-P4DLK-FKYRS"
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Get Games
78 Heroes of Might and Magic VI Gold Edition $9.99 (75% off)
50 Post Apocalyptic Mayhem $2.49 (75% off)
 Rochard $3.34 (67% off)
64  Disciples III Gold Edition $7.49 (75% off)
58  Gemini Wars $7.49 (75% off)
79  R.U.S.E. $5.99 (80% off)
74  Unstoppable Gorg $2.49 (75% off)
77  From Dust $5.09 (66% off)
Sine Mora $6.99 (53% off)
Stronghold HD $2.99 (50% off)
Stronghold Crusader HD $4.99 (50% off)
Carrier Command: Gaea Mission $24.99 (50% off)
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Origin
87 Mass Effect Trilogy $25.00 (58% off)
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GOG
50% off select strategy titles