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Spoilers: This walkthrough reveals the safe codes, locker PINs, and puzzle answers for the “Missing Parts” objective. To open the Strange Gate on Atlas Way, collect the Mechanical Parts from CEG Lockers 17, 204, and 94, combine them into the Constructed Mechanical Device, and place it in the gate’s slot. The house codes and locker PINs are separate: the house boxes give you barcodes, which you scan at the CEG terminal to reveal the locker PINs.
How the CEG locker puzzles work
During “Missing Parts,” the Strange Gate blocks the route along Atlas Way. Start at the CEG Employee Lockers building and read the computer emails for clues to the locker objective and the nearby residences. Each required part involves two stages: enter a code at a house’s black box to get a barcode, then scan that barcode at the CEG terminal to learn the PIN for a specific employee locker.
The CEG Lost and Found locker code is 772; open it to get the key for 5 South Brae. A barcode beside the scanner also opens Locker 75 with PIN 184, which contains a flare gun. That locker is optional and does not contain a gate part.
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Get the first part from 5 South Brae
- Use the key from the CEG Lost and Found locker to enter 5 South Brae.
- Find the Disk Case Key on the upstairs nightstand and use it to collect the three floppy disks.
- At Atlas Computers, use the Disk Case Key in the storage room to get the Fix-A-Disk software.
- Return to the computer at 5 South Brae. Run Fix-A-Disk, repair disk 2, then use disks 1, 2, and 3 in the required sequence and print the result.
- Enter the printout’s number, 956, in the black box to get the barcode for Locker 17.
- Back at CEG, scan the barcode and enter locker PIN 575 at Locker 17. Take the Mechanical Part and the boltcutters.
The boltcutters are needed to open chained routes on the way to the later areas.
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Get the second part from 6 North Brae
- Use the boltcutters to reach the Shopping Precinct, then enter 6 North Brae.
- Upstairs, find the lamenting poem beside the locked black box. It points to boats, arches, and children.
- Count the matching pictures in that order: seven boats, three arches, and six children. Enter 736 in the black box.
- Take the barcode, scan it at the CEG terminal, and enter PIN 971 at Locker 204 to collect the second Mechanical Part.
Get the final part from 5 Upper Brae
- At 5 Upper Brae, take the Yesterday Tape from the upstairs box and play it in the tape player.
- In the changed state, collect the Tomorrow Tape and the note that says, “Today my number was 192.” Play Tomorrow and collect the note giving 125.
- Use the back-door key obtained during this sequence to reach the shed behind the house and take the Ammonite Disk.
- Switch to Yesterday and use the disk at the computer to read the Current Count file. The clues give yesterday’s number as 192 and tomorrow’s as 125; today’s box code is 129.
- Restore the Today tape state, enter 129 in the box, and take the barcode it gives you.
- Scan the barcode at CEG and enter PIN 490 at Locker 94. Take the third Mechanical Part.
If the box does not accept 129, check the tape state: use Yesterday to access the clue, then restore Today before interacting with the box.
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Assemble the device and open the gate
- With the Mechanical Parts from Lockers 17, 204, and 94 in your inventory, combine them to make the Constructed Mechanical Device.
- Go to the Strange Gate on Atlas Way and place the device in its slot. The gate opens the route to CEG Headquarters.
Codes and PINs at a glance
| Location or item | Code or PIN | What it gets you |
|---|---|---|
| CEG Lost and Found locker | 772 | Key for 5 South Brae |
| 5 South Brae black box | 956 | Barcode for Locker 17 |
| CEG Locker 17 | 575 | Mechanical Part and boltcutters |
| 6 North Brae black box | 736 | Barcode for Locker 204 |
| CEG Locker 204 | 971 | Mechanical Part |
| 5 Upper Brae box | 129 | Barcode for Locker 94 |
| CEG Locker 94 | 490 | Mechanical Part |
| CEG Locker 75 | 184 | Optional flare gun; not a gate part |
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