Ron Gilbert's comedy Diablo-alike, Deathspank, is out now on Steam for £9.99! I mean, technically it was also out yesterday on Steam for £9.99, but it's RPS's firm belief that news gets better with age. You know, like fine wine, or the Bond films of Roger Moore.
I played DeathSpank when it first came out on Xbox Live and really enjoyed myself. The jokes are hit and miss, but come at you in such relentless volleys that you can end up doing a fair bit of giggling. Combat and progression were tighter than I was expecting, too. Ye olde trailere after the jump.
Shame there's no PC demo available yet. There's a trial version on Xbox Live, course, if you swing that way.