I tore through 'Dark Matter' in like two sittings—it’s the one that hooked me. The whole concept of the road not taken, but cranked up into a quantum physics nightmare, just nails that breathless thriller pace. It’s propulsive; you’re running alongside the protagonist the whole time.
For a more grounded, creeping dread, 'Recursion' is phenomenal. It tackles memory and time in a way that feels heavier, more tragic almost. The stakes are universe-ending, but the emotional core is this desperate love story. It’s smarter and sadder than a lot of tech-thrillers out there.
Honestly, skip 'Upgrade' if you’re new to him. It’s fine, has his signature pacing, but the ideas felt a bit recycled to me after the other two. Start with the big hitters.