You see the house through your own eyes. Every step, hinge and floorboard makes noise. Pick a mission and stay quiet.
W A S D move · mouse look (click to capture) · C crouch (quiet) · Shift run (LOUD) · E R T do an action (each shows its noise) · 1-5 use an item from your item box · hold E to open · hold Q to close · F flashlight · V tell a friend to wait · M mute · (on this menu keys 1-5 start a mission).
0–30 dB quiet · 31–55 creaks · 56–80 loud · 81+ busted. Hold doors with Shift to rush them (squeaky!).