Weekend game deals: Everything and a partridge in a pear tree

With holiday promotions in full swing, it'd probably be easier to tell you what isn't on sale this weekend. Most sites are swapping their best deals at least once a day, so you'll have to keep an eye on things if you want to snag a particularly handsome discount. As of writing, you'll find solid deals on FTL: Faster Than Light, LA Noire, Left 4 Dead 2, XCOM: Enemy Unknown, Sleeping Dogs, BioShock 1 & 2, Spec Ops: The Line, 2K strategy titles, Rayman: Origins, Torchlight II, Alan Wake, Red Orchestra 2, and both Witcher titles. Also, the Humble Indie Bundle 7 continues with three more games added this week.

Steam
88 Left 4 Dead Franchise $7.49 (75% off)
90 Limbo $2.49 (75% off)
78 Prototype 2 $19.99 (50% off)
82 Sins of a Solar Empire: Rebellion $13.59 (66% off)
82 Just Cause 2 $3.74 (75% off)
86 LA Noire $4.99 (75% off)
84 Counter-Strike: Global Offensive $7.49 (50% off)
83 Worms Complete Pack $19.99 (75% off)
88 XCOM: Enemy Unknown $33.49 (33% off)
83 Saints Row: The Third The Full Package $7.49 (75% off)
87  Civilization V GotY $12.49 (75% off)
FTL: Faster Than Light $4.99 (50% off)
Lego The Lord of the Rings $20.09 (33% off)
Miner Wars 2081 $6.24 (75% off)
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Amazon Digital
86 BioShock 1&2 + Spec Ops: The Line $9.99 (89% off)
87 2K Strategy Super Pack $19.99 (85% off)
86 The Sims 3 $10.19 (66% off)
83 Borderlands + DNF + The Darkness II $9.99 (90% off)
86 BioShock Dual Pack $4.99 (88% off)
71 Spore Ultimate Digital Collection $7.49 (75% off)
86 LA Noire Complete Edition $7.49 (75% off)
66 Payday The Heist $4.99 (75% off)
79 Tera Online $4.99 (75% off)
85 Crusader Kings II $19.99 (50% off)
81 Sleeping Dogs $24.99 (50% off)
89 Mass Effect Trilogy $29.99 (50% off)
44 The Stronghold Collection $9.99 (50% off)
77 Double Fine Bundle $7.49 (81% off)
88 Rayman Origins $9.89 (67% off)
Dark Souls: Prepare to Die Edition $17.99 (55% off)
SimCity 4 Deluxe $9.99 (50% off)
Hotline Miami $4.99 (50% off)
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GamersGate
86 Torchlight II $9.97 (50% off)
76 Hearts of Iron III Collection $7.49 (75% off)
75 Dead Island GotY $9.97 (50% off)
72 Company of Heroes Complete $10.49 (70% off)
67 Arcania - Gothic 4 $4.98 (75% off)
89 Dead Space Complete Pack $11.99 (70% off)
79 Dragon Age Complete Pack $14.99 (70% off)
73 Europa Universalis Collection $40.00 (50% off)
86 Crysis Collection $20.97 (70% off)
85 Crusader Kings Collection $44.99 (50% off)
88 Total War Shogun 2 $14.98 (50% off)
76 Magicka $4.98 (50% off)
92 Dishonored $40.17 (33% off)
79 D&D Neverwinter Nights Complete $14.98 (50% off)
74 Syndicate $20.96 (30% off)
81 Kingdoms of Amalur: Reckoning Collection $14.99 (70% off)
77 Victoria Collection $19.98 (50% off)
73 Sanctum Collection $4.80 (70% off)
Doom 3 BFG Edition $14.98 (50% off)
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GameFly
82  The Book of Unwritten Tales $13.39 (33% off)
83  Alan Wake $7.49 (75% off)
78  Alan Wake's American Nightmare $3.75 (75% off)
80  Wings of Prey Collector's Edition $12.49 (50% off)
71  SpellForce 2: Faith in Destiny $9.99 (50% off)
77  Endless Space - Emperor Special Edition $17.49 (50% off)
Tiny Troopers $3.39 (66% off)
Blades of Time $14.99 (50% off)
Cristiano Ronaldo Freestyle $2.49 (75% off)
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Get Games
74  Red Orchestra 2 GotY $5.49 (73% off)
75  Serious Sam 3: BFE $10.00 (75% off)
80  King's Bounty: Platinum Edition $5.49 (82% off)
71  Cryostasis $2.70 (79% off)
70  Death to Spies $2.70 (86% off)
56  Death Track Resurrection $2.70 (79% off)
Hell Yeah! Wrath of the Dead Rabbit $5.09 (66% off)
Commandos Complete $3.49 (77% off)
Cold Fear $2.70 (73% off)
Dogfighter $2.70 (73% off)
F.E.A.R. $2.70 (82% off)
Faces of War $2.70 (73% off)
Gods vs. Humans $2.70 (86% off)
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Green Man Gaming
78 F.E.A.R. 2: Project Origin $5.99 (60% off)
73 F.E.A.R. 3 $7.99 (60% off)
71 SpellForce 2 Deluxe Edition $12.49 (50% off)
68 Saints Row 2 $4.50 (70% off)
80 Lego Batman 2 $11.99 (60% off)
63 Jagged Alliance: Back in Action $9.99 (75% off)
77 Space Pirates and Zombies $3.73 (75% off)
Scarygirl $6.69 (33% off)
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GOG
81  The Witcher: Enhanced Edition $2.49 (75% off)
90 The Witcher 2: Assassins of Kings $11.99 (60% off)
Dungeon Keeper 2 $2.99 (50% off)
Master of Magic $2.99 (50% off)
The Longest Journey $4.99 (50% off)
Neverwinter Nights $4.99 (50% off)
RollerCoaster Tycoon $2.99 (50% off)
Planescape: Torment $4.99 (50% off)
Fallout $4.99 (50% off)
Fallout 2 $4.99 (50% off)
Icewind Dale Complete $4.99 (50% off)
Theme Hospital $2.99 (50% off)
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