Project P.I.T.T. GuideUnofficial field terminal
CLASSIFIED ENDING FILE // Spoilers belowAchievement labels conflict across third-party guides
Restricted personnel route

Secret Ending

The hidden path runs through the Fuses, 200 KG platform, Percentage Pipe, IGTAP, Mining, UV Light, Keycard, and elevator Keypad. Read the four code digits in your own save; only the END? / END! achievement labels remain unverified.

Route observedEND? / END! label conflictv1.0.8

Spoiler-light answer

Finish the upper-facility puzzle chain before taking the obvious ending. The community route is: three Fuses → 200 KG platform → Percentage Pipe → IGTAP → Mining → UV Light → Keycard → elevator Keypad.

Full-route visual reference: WompusBompus, “Project P.I.T.T. Any% Secret Ending Speedrun.” The route is useful visual evidence; keypad digits are save-specific and must not be copied from the video.

Spoiler boundary

The next section names the puzzle sequence and final interaction structure. Stop here if you only wanted confirmation that a secret ending exists.

Community result: complete route

  1. Disable or destroy the surveillance cameras, then collect and install all three Fuses.
  2. Load the upstairs platform to 200 KG or more.
  3. Feed Anomalies into the Percentage Pipe until it reaches 100% and opens the next route. The exact current-build count is unverified: one report only says “a couple,” while another claims ten and 10 percentage points per accepted Anomaly without a published item-by-item reading.
  4. Complete the IGTAP parkour minigame.
  5. Complete Mining to obtain the UV Light; in v1.0.8, each Mining upgrade requires three ores instead of five.
  6. Put the Pickaxe into the Anomaly Crafter to make a Keycard.
  7. Use the Keycard to reveal the elevator Keypad.
  8. Use the UV Light to find four digits near the manual Duck, Cash Register, Piñata, and Anomaly machines; read them in that order.
  9. Enter the code from your own save and take the elevator route before committing to the ordinary ending. v1.0.8 fixes Keypad key interactions, so retry on the current patch before treating an input failure as a route blocker.

Why published keypad numbers differ

Published routes show 2640 and 6827, while two independent detailed guides say the four digits are generated per save. Treat those numbers as examples from other runs and read the UV digits in your own game.

About SECRET?, END?, and END!

Steam’s public global-achievement page hides these descriptions in the browser, but Exophase and Trophies Hunter both reproduce the achievement-data descriptions as END? — Secret ending and END! — Main ending. Some walkthroughs reverse the labels; this guide follows the achievement-data mapping and keeps the source limitation visible because the two services may share the same Steam upstream rather than represent two independent playtests.

Why older guides may show the reverse mapping

Use END? for the Secret Ending and END! for the Main Ending. A current-build unlock toast or developer statement would provide the remaining direct confirmation.

Final report UI

The end sequence closes with a black-and-green PERSONNEL FILE / FINAL INTAKE REPORT screen showing run statistics, then offers RETURN TO MAIN MENU and TERMINATE SESSION. Record the Steam unlock notification or timestamp before leaving this screen if you are testing the END? / END! mapping.

If the keypad route does not open

  • Confirm every prerequisite puzzle has actually resolved, not merely been visited.
  • Check for a missed fuse, gate, or minigame result in the late-game spaces.
  • Do not trust a demo-era guide for the release build.
  • If a copied code fails, return to the four manual machines and read the UV digits from your own save.

Secret ending FAQ

Is there one keypad code that works for every save?

Do not use a copied number as a universal code. Published routes show different values, and independent detailed guides describe save-specific digits. Read the four UV digits in your own game.

Where are the four UV digits?

Check near the manual Duck, Cash Register, Piñata, and Anomaly machines, then enter the digits in that order.

How many Anomalies does the Percentage Pipe need?

The exact current-build count is unknown. “A couple” is not an exact measurement, and the claim of ten at 10% each lacks a published item-by-item reading. Watch the percentage after every accepted Anomaly and continue until it reaches 100%.

Is END? or END! the secret ending achievement?

END? is the Secret Ending achievement; END! is the Main Ending achievement according to two services reproducing Steam achievement data. Some walkthroughs reverse them, so the mapping remains explicitly source-attributed.

v1.0.7 ending-save fix

The official v1.0.7 notes fix save bricking after the main ending, following v1.0.6’s Continue recovery fix. Update before taking the ending and keep a backup. The notes do not promise that every file damaged on an older build can be repaired.