By Story Stage
The island's puzzles are sequenced so each one builds on a skill you already learned. The through-line is: tutorial basics → four tower quests → the silent finale → the post-game purple challenges.
| Stage | What's there | Guide |
|---|---|---|
| Tutorial Area | 4 blorb puzzles + the 5-station key-shaping. Teaches describing, stacking, splitting duties and sync. | Tips |
| Four Towers | Each tower needs 5 blorbs + a key shape; unlocks a movement tool. Order: Red → Green → Yellow → Blue. | Tower Order |
| Endgame | Black Obelisk → wall → Black Sphere, then a no-communication final zone. | Secret Ending |
| Purple Challenges | 7 post-game puzzles in the east-ridge area; required for the 100% true ending. | Secret Ending |
By Co-Op Mechanic
Big Walk's design is really a taxonomy of how friends work together. Knowing the mechanic helps you pre-plan your communication:
| Mechanic | Examples |
|---|---|
| Describe / Relay | One player sees info and describes it for another to act on. (Tutorial blorb 1, 36 Drawings) |
| Stack / Physics | Players climb on each other to reach high switches and walls. (Tutorial blorb 2, over-the-wall, platforming) |
| Split / Viewpoint | Different players see different info and must combine it. (Tutorial blorb 3, Many Lights) |
| Sync / Timing | Multiple players act at once or on a beat. (Tutorial blorb 4, platforming jumps) |
| Memory / Gesture | Speech is taken away; signal by hand. (9 Speakers, 9 Symbols, the finale) |
| Timed / Action | Pressure under a clock. (Platforming, But Do It Fast) |
| Wait / Idle | Pure patience. (Wait 30 Minutes House) |
| Transport / Chain | Pass an object hand-to-hand across distance. (Golf) |
The Seven Purple Challenges
Post-game and required for 100%, these live in the east-ridge challenge area (reachable only via the Green Tower's chairlift). Ordered roughly by difficulty:
- Wait 30 Minutes House — easiest; lock in and wait.
- 9 Symbols But You Can't Talk — a gesture primer.
- Golf — daisy-chain a ball across the map.
- 36 Drawings — describe-and-place grid.
- Many Lights Everywhere — binary yes/no signalling.
- Platforming, But Do It Fast — timed human-stack run.
- 9 Speakers But You Can't Talk — hardest; memorise and gesture.
Difficulty at a Glance
- Easy: Wait 30 Minutes House.
- Medium: tutorial blorb 1, 9 Symbols, Golf.
- Hard: tutorial blorbs 2–4, 36 Drawings, Platforming, Many Lights, the silent finale.
- Hardest: 9 Speakers But You Can't Talk.
Per-tower internal puzzle steps (each tower's five blorb puzzles) are still being documented by the community from 100% walkthrough videos; this index reflects the verified structure (towers, finale, purple challenges).