In the afternoon, I played Kingdom of Nothing. It's not ideal for a 4 hour convention slot, but we did all have a fun time get a good feel for the game. The evening game was a playtest of Spiral, a game designed to model Lovecraftian tales better than Call of Cthulhu does. While I think the creator is underestimating CoC, Spiral is doing different things, and there's certainly room for both games out there.
Sunday morning, I played a Trail of Cthulhu scenario using the Dread rules. Indeed, my only game purchase this convention was Dread, which I've wanted to pick up for some time. Everything else I could resist, especially given the uncertainty of when we'll be able to go back to our apartment.