Along with Steam's Quakecon event, which includes deals on Wolfenstein, The Elder Scrolls, Fallout, Doom and other franchises, the Humble Bundle is running a 2K promotion with the BioShock series among other major releases for a bargain (XCOM: Enemy Unknown and BioShock Infinite are unlocked at $20). Elsewhere, Amazon has Saints Row IV for $16 and Metro: Last Light Complete for $8, GameStop offers Titanfall for $30 and Dishonored for $5, while GameFly has Splinter Cell: Blacklist for $15.

Steam
72 The Elder Scrolls Online $29.99 (50% off)
78 Metal Gear Rising: Revengeance $14.99 (50% off)
75 Doom 3: BFG Edition $4.99 (75% off)
53 Impire $6.79 (66% off)
80  Wolfenstein: The New Order $29.99 (50% off)
63  Horizon $11.99 (60% off)
73  Prototype 2 $9.99 (75% off)
Doom Classic Complete $3.74 (75% off)
Two Worlds Epic Edition $1.49 (85% off)
Cargo Commnader $0.99 (90% off)
Doom 3 Pack $3.24 (75% off)
Dynasty Warriors 8: Xtreme Legends Complete $24.99 (50% off)
Wolf Pack $3.74 (75% off)
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Amazon Digital
82 Saints Row IV $15.99 (60% off)
83 Metro: Last Light Complete Edition $8.00 (60% off)
58 Dead Island: Franchise Pack $8.75 (60% off)
70  Goat Simulator $5.98 (40% off)
Killer is Dead: Nightmare Edition $13.39 (33% off)
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GameStop
87 Titanfall $29.99 (50% off)
74 Typing of the Dead: Overkill $4.99 (50% off)
91 Dishonored $4.99 (75% off)
77 Cities in Motion 2 $4.99 (75% off)
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GamersGate
85 Europa Universalis IV Digital Extreme Edition $15.30 (66% off)
58 Dead Island: Riptide Complete Edition $5.00 (75% off)
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Green Man Gaming
71 Painkiller Complete $17.49 (75% off)
77 Killing Floor $4.99 (75% off)
59  How to Survive $7.49 (50% off)
Dead Block $2.49 (75% off)
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GameFly
73 Warlock Ultimate Edition $6.25 (75% off)
82 Splinter Cell: Blacklist $14.99 (75% off)
79 Sang Froid: Tales of Werewolves
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GOG
70% off Nordic Games releases