At a glance
After the Chapter 2 power outage, go upstairs to the top-floor fuse area and pick up the Steak Key from the floor nearby. The official badge calls it the Steak Key and explicitly says Chapter 2; the matching Steak Door awards a separate badge when unlocked with it.
A creator walkthrough reports that the found key remains after restarting, but this persistence claim is not stated by Roblox. The Charlie-key wording in some narration is not the official badge name, and Charlie's identity is unresolved.

Which key is this?
The official badge description says “Find the Steak Key in Chapter 2.” It is not the ordinary key used for the locked bedroom door in Chapter 1. A second badge, “I found a place,” says to unlock the Steak Door with the Steak Key. Roblox therefore documents two distinct objectives: find the Chapter 2 key, then use it on the matching door.
Find the Steak Key
During Chapter 2, the power is cut while the group is in Steak’s streaming office. Follow the story objective to the upstairs fuse box. The October 22 walkthrough shows the key on the floor beside the fuse area after the outage. Pick it up; this is the action associated with “I found something.”
The same narrator says the key is kept after restarting. That is a creator-reported observation, not an official persistence rule, so treat it as a useful report rather than a guarantee for every future version.
Use it on the Steak Door
The Steak Door appears in the room reached after the sound sequence associated with the Nightmare. Go to the door and use the Steak Key; the official badge directory calls this unlocking the Steak Door and records a separate badge for it. The current walkthrough connects the unlock with entry to Chapter ?, whose official badge names remain “Chapter ?”.
Some video narration calls the item a “Charlie key,” and the door uses a Charlie image. Steak Key is the official badge name. The available sources do not establish who Charlie is, so the nickname does not identify a confirmed character or replace the official item name.
Confirmation and next step
Finding the key and unlocking the door are separate badge targets. After the door opens, continue into Chapter ?; its official goals include the 50-door completion badge and separate obtain/play conditions for the “???” DVD. The exact sound locations and Chapter ? route are not covered here.