Neutral Grounds is a fun adventure with detailed characters who have built-in relationships and fun antagonists. It's a great con game, I've run it twice with a lot of success. As a free product, this is an unbelievable value. The quality of the adventure and the artwork is top-notch, and they're giving it away. It's also an excellent instruction in adventure design, on how to make a one-shot work really well. You should be downloading this right now.
[5 of 5 Stars!]