The best deal statistically/percentage-wise would have been the Dead Island 4 pack for $20 when it was on sale and they had a pricing error when the regular price was $120. Honestly, not even worth $5 a copy IMO.
What I believe to be the best deal I've purchased would be the GTA:IV Complete pack for ~$7 and it included GTA:IV, The Ballad of Gay Tony and The Lost and Damned.
Steam doesn't have many good deals compared to Steam key retailers tbh so most of my good deals on Steam games are from other sites and include bargains like Killing Floor for $3, MW2 for $4 or Saints Row 3 for $15 (then I used my referral points on GMG and got it free).
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Serious Sam HD Double Pack for $1.5
HIB4 beat the average
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Titan Quest+Immortal Throne for €2.50. Wasted roughly 60 hours on that.
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Dungeon defenders for 3€ for my friend. He has like 150 hours on it :D
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.__. I don't ever remember it being that cheap over here. I bought it for €2,50 and even that was a stunning deal.
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The Potato Sack is still the best thing I ever bought on steam: 13 indie games from good to great quality, extra copies for any indie game you already own and later a permanent golden potato icon on my steam profile page and free valve complete pack(including Portal 2 on release day) and of course extra copies of any valve game you already own(even for Portal 2). Everything for around 45$.
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What was the best deal u really had to buy when u saw it?To me it was garry's mod it was only two dollars :D And is still fun
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