There are three Tranquilizer Darts in Granny, and they can be found in the Weapons Cabinet, with the Crossbow. Unlike regular objects, they cannot be picked up by hand. Only the Crossbow can carry them. When the Crossbow is dropped, the Tranquilizer Dart that is loaded inside if there is one will also be dropped.
The Tranquilizer Darts are small, narrow darts with fairly short, silver needles at the top of each dart. They are white in color, with red parts at the bottom of the dart and just below the needle.
The Tranquilizer Darts are used to knock the Screwdriver off of the shelf above the stairs, and they can also be used to knock Granny out. A much less preferred method to use the Tranquilizer Darts is to shoot them to make noise and to lure Granny to your location. If a Tranquilizer Dart is shot using the Crossbow, it can trigger Bear Traps.
Effect on Granny
When Granny is shot with a Tranquilizer Dart, she will stop walking and slightly roll her head from left to right and stay still for 1 second and drop to the floor in a ragdoll position; and she will become an "obstacle" if you want to go past her. She won't be able to get up or attack you, and she will be knocked out for a set amount of time, depending on the difficulty that you are playing on.
- As opposed to the Shotgun which has limited ammo scattered throughout the house, the Tranquilizer Darts are reusable and most of the time fairly easy to retrieve after firing.
- In most cases, the Player can determine whether they prefer assembling the Shotgun for stronger, albeit limited, firepower or if they prefer unlocking the Crossbow for a slightly weaker but overall more versatile weapon.
- It's unknown why Granny would lay a Crossbow and Tranquilizer Darts as she doesn't seem to use them.