Although it's not as epic as Steam's long-awaited summer sale, Amazon has some pretty solid deals this weekend, including Civ IV, V and a Stronghold Collection for $19.99 (or just Civ IV and V for $11.99), Bulletstorm, Burnout Paradise, Mercenaries 2, Mirror's Edge and The Saboteur for $14.99, as well as five Square Enix titles for $7.49. Other noteworthy deals include 75% off Binary Domain, The Darkness II, Alice: Madness Returns, Borderlands, Bad Company 2 as well as both BioShock games for $7.49. It's worth mentioning that Steam's lackluster lineup this week lends credence to rumors about its summer sale launching next Thursday, July 12.

Steam
79 Wargame: European Escalation $19.99 (50% off)
81 Call of Duty: Modern Warfare 3 Collection 2 $7.49 (50% off)
Wizorb $1.49 (50% off)
Dungeons & Dragons Online Half-Orc Pack $9.99 (50% off)
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Amazon Digital
64 Binary Doman $9.99 (75% off)
83 Borderlands GotY $7.49 (75% off) 
86 BioShock Dual Pack $7.49 (81% off)
73 Spec Ops: The Line $24.99 (50% off)
84 Max Payne 3 $39.99 (33% off)
86 Battlefield: Bad Company 2 $5.00 (75% off)
88  Battlefield 3 $35.99 (40% off)
86 The Sims 3 $9.99 (67% off)
69 Payday: The Heist $4.99 (75% off)
81  Kingdoms of Amalur: Reckoning $24.99 (38% off)
88  Call of Duty: Modern Warfare 2 $9.99 (50% off)
77  The Darkness II $12.49 (75% off)
82  Call of Duty: Black Ops $19.99 (50% off)
71  Alice: Madness Returns $4.99 (75% off)
EA Bundle $14.99 (83% off)
Paradox Bundle $12.49 (91% off)
2K Strategy Pack $19.99 (80% off)
Total War Bundle $29.99 (78% off) 
Square Enix Ultimate Collection $7.49 (92% off)
Battlefield 2 Complete Collection $5.99 (75% off)
X-COM: Collection $2.99 (80% off)
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GamersGate
47 Painkiller Complete Pack $4.80 (80% off)
53 Gothic Complete Collection $12.48 (50% off)
74  The Experiment 112 $4.98 (50% off)
Genesis Rising $2.48 (50% off)
The Guild Gold $4.98 (50% off)
The Guild 2 Platinum $9.98 (50% off)
Railroad Pioneer $2.48 (50% off)
Black Mirror $4.98 (50% off)
Harbinger $2.48 (50% off)
Chaser $2.48 (50% off)
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GameStop
81 Bulletstorm $5.99 (70% off)
87 Mass Effect 3 $39.99 (33% off)
79 Tera Online $39.99 (20% off)
62 Gotham City Impostors $7.49 (50% off)
74 Dead Island $14.99 (50% off) 
74 Section 8: Prejudice $7.49 (50% off)
Age of Empires III: Complete Collection $19.99 (50% off)
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GameFly
Indie-Pendence Day Bundle $10.00 (87% off)
50-75% off Might and Magic content
50% off Call of Duty DLC

Green Man Gaming
83 Worms Reloaded $6.78 (66% off)
61 Alien Breed: Trilogy $7.80 (66% off)
25% off everything via coupon code "25OFF-ALLTH-EGAME"
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GOG
50% off Strategy First titles