Big Walk Red Tower and Map Room Guide
Return five challenge rewards, complete the Red key route and unlock the Map Room, portable map, compass and Big View achievement.

Complete Red Tower
You need five physical challenge rewards. Nearby Red-region puzzles form a convenient route, but rewards are not permanently locked to one colored tower. If one challenge blocks your group, complete another accessible challenge and bring that reward back.
Place all five at the tower receiver, take the raw Red key from the roof and use the cutter at the tower base. Each cutter points toward the next one. Continue until the key no longer has unfinished edges.

Open the Map Room
Return toward the starting hub and find the prominent blue doorway. Insert the completed Red key. Inside are:
- the large map that reflects puzzle and reward progress;
- a portable folding map for field coordinates;
- a compass that points north;
- laser pointers for directing nearby teammates.
Entering the map area unlocks Big View on Steam and PS5.
Common failure states
- No key appeared: one reward has not been placed in the receiver.
- Door rejects the key: at least one cutter remains.
- Map shows a reward lying down: it was collected but has not been submitted.
- You cannot solve 4166 / 1899 yet: take the portable map or find the GPS near Green Tower.
Sources checked
- GAMES.GG map guide — unlock sequence and map states
- GAMES.GG compass guide — Map Room equipment
- Complete walkthrough — Red route cross-check