I spent the weekend in this headset, and my shoulders still remember it. BONELAB opens with you on a gallows, a knife floating in front of your face, and the sudden realization that you’re about to physically act your way out of an execution. That’s the whole game in one moment: Stress Level Zero built a world you touch, then dared you to interact with it like a person instead of a cursor.
BONELAB is the sequel to Boneworks, and like its predecessor it’s VR-native — no flat version exists, and there never will be one. It launched day one on Quest 2 and PCVR. Every object has weight. Every surface reacts. Your body is a fully simulated sack of meat with inverse kinematics, and the game expects you to use it.
Here’s the thing: the physics are the entire point, and they’re genuinely the best part. You don’t press a button to pick up a gun. You reach out, close your hand around the grip, and the Marrow engine treats your controller as a hand with real momentum. Hold a pistol by the barrel and it becomes a club. Grab an enemy’s wrist and you can pin their arm while you work them over. Stack crates to climb to a ledge you weren’t supposed to reach. Most of these experiments actually work, which is rarer than it sounds in physics games — usually the sandbox falls apart the second you try something clever. BONELAB holds together.
The body itself is the star. A body-log sits on either elbow; slap it and you swap avatars, and the new proportions change how you move and what you can grab. Want to be a squat heavyweight who can’t fit through a vent? That choice has consequences. The game tells you, flat out, that if you physically imagine lifting a heavy object, you’ll move it easier — and it’s right. Squat and heave, and the crate comes. Stand there and wiggle the stick, and you’ll strain.
The shooting deserves its own line. Recoil actually kicks your hands back, and a pistol fired one-handed wanders the way a real one would. Melee is where it gets silly in the best way — you can cave in a skull with a wrench, or spin a staff into a crowd and watch bodies tangle. The enemies aren’t smart, but they react to where you hit them, and that reactivity sells the world more than any cutscene would.
Look, I’m not gonna lie: the campaign is thin. It’s a sequence of arena puzzles and shootouts that exist to show off the mechanics, not to tell you anything you’ll remember. You escape, you explore a lab, you fight faceless zombies and headcrab-ish robots, you unlock a hub. The hub is where BONELAB actually lives — a central space that opens into a parkour course, a wave-shooter arena, a sandbox loaded with every spawnable object, and a campaign you can dip back into whenever. Capsule toys hidden around the world unlock new props, enemies, and weapons for the sandbox, so there’s a reason to poke into corners.
The real draw is the toybox, and Stress Level Zero knows it. They shipped the Marrow SDK and a Thunderstore mod pipeline on day one, and custom content is already pouring in — avatars, levels, weapons, weird experiments. If you want to be a ten-foot goblin with a minigun, that’s already possible through mods.
Compared to Boneworks, the gaps are smaller and the floor is higher. Boneworks stumbled on janky climbing and a muddy finale. BONELAB keeps some of the climbing friction but smooths almost everything else — load times, grip reliability, the moment-to-moment feel of just holding something. Same idea, executed with three years of lessons.
Now the honest catch. The physics, for all their brilliance, fight you. Climbing a ladder is harder than it needs to be. Mantling a ledge sometimes launches you across the room. When the simulation agrees with you, it feels like magic; when it doesn’t, it feels like wrestling a stubborn mannequin. That friction is part of the charm for some and a dealbreaker for others.
Comfort runs intense — fast action, smooth locomotion, and a body that lurches when you sprint. Snap turning and a vignette toggle are there, but this isn’t a sit-still experience, and nobody should hand it to a VR newcomer expecting a calm afternoon.
On hardware, it scales. PCVR gives you the full build at a smooth framerate on a mid-range rig, with headroom to push supersampling. Quest 2 runs it standalone at lower fidelity — softer textures, simpler lighting — but the physics don’t change, and that’s what matters. The game is CPU-hungry because the simulation runs constantly, so a weak processor will stagger even if the GPU is fine.
So who is this for? If Boneworks was your favorite VR game, BONELAB is the sequel you wanted — same bones, fewer rough edges, deeper toybox. If you want a story to pull you through, look elsewhere; the campaign is a tutorial with ambitions. And if you’ve never touched a physics VR game, start here anyway, because nothing else lets you feel a virtual object the way this does.
BONELAB is a sandbox that happens to have a game inside it. The game is fine. The sandbox is the reason to own a headset.