- Endacopia core key: Unlocks the core room in The Offices, a critical step for Ending C progression
- Secret generator: Hidden behind the first set of stairs, accessed via a phone-triggered teleport
- Seven puzzles: Each requires matching or swapping symbols ($, ^, !, %, #) based on formula clues
- Short Circuit skip: Pouring water on the AI's outlet skips the boss fight but requires the transparent mug
- Core room unlock: Requires vacation tickets, stress toy, and energy drink to clear the path
Understanding the Endacopia Core Key
The Endacopia core key process is one of the most intricate puzzle sequences in the game. Located within The Offices zone, this multi-layered challenge requires players to discover a hidden generator, solve seven symbol-based puzzles, and ultimately unlock the core room to progress toward Ending C.
Before attempting the core key sequence, ensure you have the telescope from Timesville and have completed the main Offices objectives. The telescope is essential for discovering the phone number that initiates the secret access sequence.
The core key sequence is tied directly to the secret puzzles in The Offices. Completing these puzzles not only advances your progress but also unlocks the path to the core room without requiring a full AI boss confrontation.
| Requirement | Location | Purpose |
|---|---|---|
| Telescope | Timesville (Paisley's party) | Reveals phone number at train station |
| Office Access | The Offices main entrance | Required to reach the phone and stairs |
| Transparent Mug | Office area | Used for Short Circuit achievement (optional) |
| Vacation Tickets | Dice game winnings | Needed to unlock the core room |
Accessing the Hidden Generator
The generator room is concealed behind a cleverly designed sequence that most players overlook on their first playthrough. The entry method involves using the telescope, making a phone call, and waiting in a specific location.
Find the Phone Number
Go to the train station inside The Offices. Pull out your telescope and scan the area. Write down the number you find, as it is randomized per playthrough.
Make the Call
Use the office phone to call the number you discovered. A morse code message will play, which translates to "wait 1 minute behind stairs."
Reach the Waiting Spot
Go down the elevator, then proceed down the stairs as you normally would. However, instead of continuing forward, go behind the first set of stairs.
Wait for Teleport
Stand still and wait for approximately one minute. You will be teleported to the inside of The Office's core generator.
Once you are positioned behind the first set of stairs, do not move. Any movement may reset the teleport timer. Stay patient and wait for the full minute to trigger the transfer.
Core Key Puzzle Solutions
Inside the generator room, you will face seven distinct puzzles. Each puzzle presents a "formula" as a clue, and you must manipulate symbols on a grid to match the required solution. Here is the complete breakdown:
| Clue | Formula | Solution |
|---|---|---|
| Clue 1 | $ | Make all 4 symbols the $ symbol |
| Clue 2 | * -> ^ | Change all * into ^ |
| Clue 3 | $ <-> ! then ! -> % | Swap $ and ! with each other, then turn every ! into % |
| Clue 4 | % -> ! | Turn everything into ! (puzzle is shaped like %) |
| Clue 5 | #^ + #! -> #% | Number of ^ and ! combined must equal number of % |
| Clue 6 | :^( -> ;^) | Turn the frowny face into a winky face |
| Clue 7 | ^5 | Need 5 ^ but only 4 spaces; click top-left face for extra space |
Clue 7 is the trickiest puzzle. The grid only shows 4 spaces, but you need 5 caret symbols. Click the face in the top-left corner of the window to reveal an additional space, allowing you to place all five.
Symbol Types
- $ (dollar)
- ^ (caret)
- ! (exclamation)
- % (percent)
- # (hash)
Common Operations
- Swap: Exchange two symbols
- Convert: Change one to another
- Count: Match quantities
- Shape: Match visual pattern
Difficulty Ranking
- Clue 1-2: Easy
- Clue 3-5: Moderate
- Clue 6: Tricky
- Clue 7: Hard (hidden mechanic)
Short Circuit: Skipping the AI Boss Fight
After completing the generator puzzles, you have a choice when facing the AI encounter. There are two distinct paths, each with different achievement rewards.
Completing the Ending C secret puzzles will skip the AI fight automatically but will not award the Short Circuit achievement. If you want both, you must do separate playthroughs or use the water method specifically.
The Short Circuit method allows you to bypass the AI boss fight entirely by exploiting a weakness in its power supply. This requires the transparent mug obtained earlier in the Office area.
| Method | Requirements | Achievement | Result |
|---|---|---|---|
| Short Circuit | Transparent mug, water cooler | Short Circuit | Skips AI fight |
| Secret Puzzles | All 7 generator puzzles complete | None (auto-skip) | Area completed without fight |
| Direct Combat | No special items | Varies by ending | Standard boss encounter |
Obtain the Transparent Mug
Locate the transparent mug in the Office area. It is found to the right of the elevator on the office floor.
Fill with Water
Take the mug to the office water cooler and fill it completely with water.
Locate the AI Circuit Box
Find the AI's circuit box plugged into an outlet in the bottom-right corner of the room where the encounter takes place.
Pour and Short Circuit
Pour the water directly onto the outlet the AI is connected to. This immediately shorts the circuit, ending the encounter without combat.
Unlocking the Core Room
Once the generator puzzles and AI encounter are resolved, the final step is unlocking the core room itself. This requires distributing items to specific NPCs in The Offices.
The order in which you deliver items does not matter, but all three must be completed before the core room becomes accessible. Make sure you have all items before heading to the end of the hallway.
| NPC | Item Needed | Item Source |
|---|---|---|
| Ms. Mania | Vacation Tickets | Won from dice game in elevator area |
| Red Dude (unnamed) | Stress Toy | Purchased from vending machine |
| Blue Girl (unnamed) | Energy Drink | Purchased from vending machine |
Core Key Completion Checklist:
- Obtain telescope from Timesville
- Find phone number at train station
- Call number and decode morse message
- Wait behind first stairs for 1 minute
- Solve all 7 generator symbol puzzles
- Obtain transparent mug and fill with water
- Pour water on AI circuit box (Short Circuit)
- Win vacation tickets from dice game
- Buy stress toy and energy drink from vending machine
- Deliver all items to unlock core room
- Complete core minigame to end the zone
Post-Core Key Progression
After unlocking and completing the core room, the zone is cleared and you can proceed with the rest of the Ending C storyline. The narrative shifts back to Mellow's room for the next chapter.
Finishing the core room sequence marks the end of The Offices zone for Ending C. You can now talk to the Toilet Monster, return to Mellow's room, and unlock the second door to continue into Chapter 2.
The items and abilities you gain from The Offices, including the wrench from The Founder and any achievements unlocked, carry forward into subsequent chapters. Make sure to collect the scalpel from Misery Town before proceeding, as it is needed for multiple puzzles and combat skips in later areas.
| Next Step | Location | Key Action |
|---|---|---|
| Talk to Toilet Monster | Mellow's room | Progress dialogue |
| Unlock second door | Mellow's room | Use computer to unlock |
| Find flashlight and pencil | Second door room | Essential for cave exploration |
| Discover cave | Mellow's room wall | Use flashlight to reveal |
| Collect paper pieces | Inside cave | 4 pieces needed for map |
Inside the closet after the cave, you will find an empty canvas. Place the four paper pieces and copy the drawing from the mannequin. This brings Scribbly to life, who can draw a map for the Toilet Monster, enabling further progression.
Frequently Asked Questions
Q: What is the Endacopia core key used for?
The core key sequence unlocks the core room in The Offices zone. Completing it is a mandatory step for Ending C progression, as it clears the zone and allows you to advance to Chapter 2.
Q: Can I skip the AI boss fight without the transparent mug?
Yes, but only if you have completed all seven secret generator puzzles. This will auto-complete the area without the fight, but you will not earn the Short Circuit achievement. The transparent mug method is the only way to get both the skip and the achievement.
Q: How do I find the phone number for the generator entrance?
Go to the train station inside The Offices and use your telescope. The number is visible through the telescope and is randomized per playthrough, so write it down. Call it from the office phone to receive the morse code message.
Q: What happens if I get stuck on Clue 7 in the generator puzzles?
Clue 7 requires five caret (^) symbols but only shows four spaces. Click the face icon in the top-left corner of the game window to reveal a fifth space. This hidden interaction is the key to solving the final generator puzzle.