I'm not much of a gamer, but this is one seriously funny game. I think the engine is the old Unreal one, but I'm closer to being wrong than right. The game is centered around some dude that's obviously gone postal, and you have several chores to take care of daily.
Some of the high points of the game:
<ul><li>Urinating on people
<li>lighting people on fire
<li>using the stun-gun until people urinate on themselves
</ul>And my personal favorite:
<ul><li>Using cats as silencers</ul>
This game is a great stress relief (not that I'm a stressed guy), and delivers the laughs everytime I play it. It's intended to offend as many as possible, so keep your sense of humor.
Check it out
here.