For $US14.99, you might expect to get Deus Ex and its sequel, Invisible War on Steam. But for the next 38 hours, this amount will get both games and Human Revolution, the latest title in the series, along with three bits of DLC.
With Human Evolution retailing on Steam for $US34.99 on its own, it's quite the deal. It's a flat-out reduction of 75 per cent across all the Deus Ex games and if you've yet to play any of them (or even one of them) you'll be hard-pressed to get them cheaper (unless you caught the Green Man Gaming sale back in May).
The sale also applies to each game individually so if you just want Human Evolution, you can pick it up for $US8.74, which is still a bargain.