GTA IV is a gritty, dark take on the open-world crime genre. Niko's story is surprisingly serious compared to other GTA games, and Liberty City is a grimy, detailed place that feels lived-in. Driving and shooting aren't the best, feeling a bit stiff, and while there's plenty of craziness, it's also got this somber vibe. Still, if you're into a more grounded (if still super chaotic) GTA experience, IV is a classic.