Warren Spector has hailed Heavy Rain maker David Cage as no less than "a genius".
That's from the mouth of one of the chief creators of Deus Ex, System Shock and Thief.
"David Cage is a genius. If Tim [Schafer - a "really good friend"] isn't the best writer in gaming, David is," Spector told MCV Pacific.
"I've never met the guy - I'd love to sit down and talk to him. But, basically, Heavy Rain works because it's five scripts all jammed together and meshing together and branching together. It's like it's the world's biggest choose-your-own-adventure book, and I can admire the craftsmanship behind that, and the skill it takes. I mean, I've actually written choose-your-own-adventure books, and I know how hard writing those is."