I've been a fan of Penny Arcade for quite a while now, even with all their Kickstarter shenanigans. When On the Rain-slick Precipice of Darkness started way back in 2008 I jumped on it, and I thoroughly enjoyed myself. Now it has come to an end. And I reviewed it. Just like I did the third one.
Penny Arcade’s On the Rain-slick Precipice of Darkness 4 review