Delta Green: Handler’s Guide is the GM guide for the Delta Green RPG itself; and when you’ve been a fan of the game for as long as I have, the updating of the backstory alone is going to be worth it. A lot of stuff has gone down in the Delta Green universe since the 1990s. And, as would be appropriate for a Cthulhu Mythos game, things have gotten worse. I have some fun Halloween reading to look forward to.