Historical low for this fairly-recently-released PC version of the rough-and-ready console game. Hire limited-vocabulary pawns as you explore a world on foot on a perilous adventure, fighting gigantic monsters and looting ever-more-powerful gear. And just when you think the adventure ends, that's when it really begins...
I've already got this on 360, so I'll be passing (until it's a fiver), but the PC version is apparently oodles better thanks to finally fixing that frame-rate, along with the usual PC bonuses. But they're masterworks all, you can't go wrong.
Edit: thanks to Lukester, who adds:
"Also you can get a further 5% of the price, if you join there uncut steam group"