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Big Walk Lightbulb and Speaker Room Puzzle

Progressive, source-checked help for the Big Walk puzzle at 3825, 1930: how to identify it, coordinate the team and claim the reward.

2–12 players Near Green Tower — coordinates 3825, 1930 Updated Aug 15, 2026
Players also call this: two locked rooms with incomplete displays, green tower puzzle, 3825, 1930 puzzle
Big Walk Lightbulb and Speaker Room Puzzle — official Big Walk game screenshot
Big Walk's open world is built around exploration, communication and shared discoveries.Official screenshot © House House / Panic

How to identify it

This guide covers two locked rooms with incomplete displays at Near Green Tower — coordinates 3825, 1930. Confirm the visible objects and coordinates before opening a hint; Big Walk does not display official puzzle names.

Hint ladder

Quick solution

Official Big Walk screenshot showing players stacking and gesturing together on the beach at sunset
Official Big Walk screenshot showing players stacking and gesturing together on the beach at sunset. Use the identifying features and coordinates in this guide to confirm the exact puzzle.Official screenshot © House House / Panic

Complete step-by-step solution

Quick checklist

  • At least two players are present
  • The team has agreed on short signals
  • Someone has a free hand or bag slot for the reward
  • Number the nine pieces before locking in; one flash system is far clearer than inventing descriptions mid-puzzle.

Verify it before moving on

After the reward appears, choose one carrier and take it to the correct receiver before the group disperses. A solved mechanism and a banked progression item are not always the same thing.

Related Big Walk help

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