The cream of this week's crop is a $9.99 bundle on Steam containing both the original S.T.A.L.K.E.R.: Shadow of Chernobyl and the third entry in the series, Call of Pripyat. There are tons of other bargains out there too so have a bit of a browse below.

Steam
• S.T.A.L.K.E.R.: Shadow of Chernobyl + S.T.A.L.K.E.R.: Call of Pripyat - $9.99 (75% off)
• Foreign Legion: Buckets of Blood - $2.49 (50% off)
• DogFighter - $8.49 (50% off)
Direct2Drive
• Pac-Man Bundle - $4.95 (50% off)
• FREE Victoria Complete with Purchase of Victoria II - $39.95
GamersGate
• Battlefield: Bad Company 2 - $29.95 (40% off)
• Blood Bowl Dark Elves Edition - $19.97 (50% off)
• Civilization IV Complete Edition - $9.98 (75% off)
• Command & Conquer Red Alert 3 - $14.97 (50% off)
• Command & Conquer Red Alert 3: Uprising - $8.97 (50% off)
• Company of Heroes Gold - $11.98 (60% off)
• Company of Heroes: Tales of Valor $11.98 (60% off)
• Europa Universalis 3 Complete - $6.98 (75% off)
• Hearts of Iron 3 - $8.98 (70% off)
• King Arthur - The Role-playing Wargame - $13.59 (66% off)
• Stronghold Collection - $7.48 (75% off)
• Sword of the Stars Complete Collection - $20.96 (30% off)
• Total Annihilation - $3.39 (66% off)
Impulse
• Street Fighter IV - $14.99 (50% off)
• Resident Evil 5 - $24.99 (50% off)
GOG
• Gothic 2 Gold Edition - $5.99 (40% off)
• Painkiller Black Edition - $5.99 (40% off)
• Realms of Arkania 1 + 2 - $4.49 (25% off)
• Realms of Arkania 3 - $4.49 (25% off)
• Spellforce Platinum - $5.99 (40% off)
• The Guild Gold Edition - $5.99 (40% off)
Green Man Gaming
• Trine - £4.50 (84% off)