In anticipation of the impending launch of Dishonored, Bethesda has released a free iPhone spin-off game. Entitled Dishonored: Rat Assassin ... well, it's pretty self-explanatory. That is to say you assassinate rats, not that you play as a furry, diminutive assassin.

If we were to say the words "rat ninja," you'd probably have a good idea of what to expect from the gameplay.