UPDATE: Aaaaaand it's gone.
ORIGINAL: Before you ask, no - this doesn't include the upcoming Far Cry 4 - but every other entry in the Far Cry series is currently 75% over at Gamersgate. What that means is that the most expensive item is £5.00, or you can get everything in the back catalogue for just £13.50. I think we can all agree that's a lot of Far Cry for your money.
Obvious highlights are Far Cry 3 and its utterly barmy yet brilliant spin-off Blood Dragon, but those of you wishing to see how the open-world shooter series began will be able to for less than the price of a pint. It's admittedly a little dated now, but like I said - less than the price of a pint.