Guide / Yellow Tower: Tunnel Puzzles
Yellow Tower: Tunnel Puzzles
The Yellow Tower needs 5 puzzles solved — aerial chair delivery, a 36-piece color wheel, a six-microphone check, and a mirrored button puzzle among them — before the key opens the tunnel and the Big Tunnel trophy.

Where the Yellow Tower is
Ride the chairlift you unlocked at the Green Tower — the Yellow Tower is a short walk from the chairlift station. Guides consistently place it as the third tower in the Red → Green → Yellow → Blue → Black progression, though Big Walk is nonlinear enough that your group can tackle it in a different order if you find another tower first.
The Yellow Tower puzzles
Four of these five are corroborated across multiple independent guides with matching details; the fifth is noted as lower-confidence below rather than stated as fact.
1. Aerial chair symbol delivery
A crescent-shaped chair runs on a track between two platforms. One side holds a display board showing a sequence of symbols; the other holds a set of matching pieces. Ride the chair back and forth carrying pieces across (a backpack lets you carry more than one at a time) until the sequence on the board is fully matched.
2. Color wheel collection (36 pieces)
Scattered around the puzzle area are 36 colored pegs in four colors — roughly nine each, tucked near rocks, under trees, on a bridge, and near a stage structure. Split up, collect them, and place them on the central wheel — order doesn't matter. A full wheel triggers the reward.
3. Six-microphone sound check
One player sits in a chair wearing headphones, facing six microphone stands. The other player speaks into each microphone in turn; the listener identifies which one comes through clearly (or loudest) and calls it out. Confirm and move to the next until all six are checked.
4. Mirrored button puzzle
One player is shown one of seven lit positions inside a booth; the button panel outside is mirrored, so calling out the position directly presses the wrong button. Convert before calling it out using: 1↔3, 2↔2 (stays put), 4↔7, 5↔6 — then the outside player presses the converted number.
5. Sound-matching room (lower confidence)
Guides agree there's a fifth puzzle involving a player enclosed in a room who hears one of several distinct sounds and has to describe it to a teammate outside, who then matches it to the correct speaker or booth — but they disagree on the exact number of sounds and setup details. Treat the “describe what you hear, partner matches it” mechanic as reliable, and figure out the specifics in-game rather than relying on a script here.
Unlocking the tunnel
With all five puzzle rewards placed in the Yellow Tower's panel, take the resulting key through five cutting stations (arrows point to each next one) to shape it, then use it at the tunnel entrance. Passing through unlocks the Big Tunnel trophy.
Related
Done here? The Red and Green Tower guides cover what comes before this one, and the Blue Tower guide covers what's next. For the full pacing picture, see the map & walkthrough overview.
Facts last checked 2026-08-11 against official sources (House House/Panic and platform stores). Some details — pricing, platform availability, patch status — can change after this date; confirm on the official store page before you buy.