Complete cabin route · Both gems explained

Cube Escape: The Lake Walkthrough

Collect every fishing item, grow the offering tree, open both safes, and use the green gem from the Seasons code to reach the fate-changing ending.

Updated Sep 26, 2026Key codes 1422 · 1487Coverage Good ending

Cabin to cube

Complete step-by-step route

Verified route
  1. At the table view, take the fishing rod and wire. Open the drawer and take the knife.
  2. Turn to the window, take the folded note above it, and unfold it. Keep it available because it shows the five offering positions.
  3. Look up and take the insect from the ceiling.
  4. Turn to the cupboard. Take the hook from the floor and the crowbar from the left cupboard.
  5. At the doorway, place the fishing rod down, attach the wire, attach the hook, and put the insect on the hook.
  6. Reel in the line and take the shrimp.
  7. Put the shrimp on the cutting board, cut it with the knife, and take both the small key and the shrimp head.
  8. Use the small key on the upper green cabinet. Take the magnet and the worm.
  9. Return to the rod, bait the hook with the shrimp head, and reel in the body. Use the knife on the body and take the apple.
  10. Bait the hook with the worm and reel in the fish.
  11. Put the fish on the cutting board, cut it open, and keep clicking the black growth until it becomes a five-branched tree.
  12. Use the folded note to place the apple in its matching branch position.
  13. Attach the magnet to the fishing line and reel in a key. Use it on the lower green cabinet and take the coin.
  14. Place the coin in the matching position on the tree.
  15. Use the crowbar on the loose wall board near the tree and take the key hidden behind it.
  16. Use that key on the glass cabinet and take the mold.
  17. Attach the mold to the fishing line, reel in the shell, and place the shell on the matching branch.
  18. Fish with the magnet again to pull up the first safe. Read the mirrored equation as 6 × 237.
  19. Calculate the result as 1422, enter the corresponding mirrored symbols, open the safe, and take the blue gem.
  20. Fish with the magnet once more to retrieve the second safe. Enter the code from Seasons: 1487. Take the green gem.
  21. Use the crowbar on the other visibly cracked wall board and take the eyeball.
  22. Place the gem on the tree. For the Good ending, remove the blue gem if you placed it and use the green gem instead.
  23. Place the eyeball in the final empty position on the tree. The room darkens and a corrupted shadow appears.
  24. Turn through the cabin views until you face the shadow, click it repeatedly, then click the black cube that remains to finish the game.

Code desk

Why the codes are 1422 and 1487

01

1422 safe

The symbols mirror ordinary digits. Read the clue as 6 × 237, calculate 1422, then select the mirrored symbols for 1-4-2-2.

02

1487 Seasons safe

The second safe explicitly asks you to use a code from Seasons. It is the moon/safe code 1487 from Summer 1971.

03

Green gem

The green gem replaces the blue gem on the tree. Make that swap before placing the eye to change the final encounter.

Verification register

How these steps were checked

Official flow confirmation: Rusty Lake’s official The Lake walkthrough page.

Cross-checked step-by-step source: AppUnwrapper’s complete written route. This page uses original wording and explicitly corrects the ambiguous gem-swap phrasing by naming the blue and green gems.