OBJECTIVES / 02

Four keys. No lost progress.

Use original MONOCHROME game images and creator footage to compare rooms, track four keys and check what to try when the last key is missing.

MONOCHROME game screenshot showing a gray room with a drawer cabinet, scattered papers and overturned furniture.View image ↗
Look beyond the doorwayA drawer cabinet and scattered papers are visible. Match several objects when comparing this room with your own run.Game gallery / Robipedia ↗
MONOCHROME game screenshot of a dark room with a tilted table, cabinet and ceiling light.View image ↗
The furniture roomUse the tilted table, cabinet and door together as a visual landmark. This image does not verify a key spawn.Game gallery / Robipedia ↗
Four-key search guide
Sources reviewed · Evidence policy

What the four slots mean #

Read the checks and explanation +

The developer confirms four keys. Key 1–4 in this checklist are your collection slots, not official item names or a fixed room order. We have not independently verified current-build key coordinates. Developer source.

The gallery shows real furniture rooms, but a screenshot of a cabinet does not prove that it contains a key. Use the prompt you see in your session. Route evidence.

Keep a pickup record #

Enable JavaScript to save your checklist. These are personal collection slots, not fixed locations.

Add room notes in the companion

Missing the last key? #

Read the checks and explanation +
  1. Compare the game’s pickup count with your notebook marks.
  2. Revisit rooms you entered but did not inspect fully.
  3. Check unexplored branches before repeating a completed one.
  4. Match multiple landmarks when comparing a creator’s video.
  5. Record the date and platform if the room layout differs.

One missing object does not establish whether spawns are fixed, randomized or changed by an update.

A useful location correction #

Read the checks and explanation +

Capture the approach from a recognizable landmark, the object before pickup and the game’s response afterward. Include your date and platform. A close-up of a key alone does not show another player how to reach it.

Prepare a correction note. This creates a local file, not an automatic submission.

Watch, then try it

See the route in motion.

All walkthrough videos ↗
YouTube · spoiler warning

Codes, key locations & ending

A creator walkthrough listed on September 12. Contains puzzle answers and the ending. Compare its rooms with your current session.

Search the field guide

Esc to close · ↑ ↓ to moveAll guides ↗

Replace this notebook?

Game image

Original game gallery & credits ↗