Silksong: How Long to Beat It Without Crying (Too Hollow Knight: Silksong game length varies—main story takes 20-25 hours, while completionists may spend up to 50 hours exploring. I’ve been playing Hollow Knight: Silksong since it dropped, and let me tell you, this game is a time vortex. One minute you’re casually exploring a mossy cave, the next you’ve lost an entire weekend to a boss that looks like an angry pillow.