In Big Walk, each player can hold only one item at a time. A backpack changes that, letting you carry a second item on your back so you can juggle multiple puzzles without hiking back to a tower to swap gear. Equipping one for the first time also unlocks the Big Pack achievement.
Quick answer: After crossing the red bridge in the starting area, reach the Red Tower, look toward the yellow maze to spot a blue circular building nearby, walk inside, and have a teammate take the backpack off the central pole and place it on your back. The trophy pops the instant it is equipped.
Backpack location near the Red Tower
The earliest backpack becomes reachable right after you finish the opening section and cross the red bridge. From there, the fastest one to grab sits in a blue structure a short distance from the Red Tower.


Join readers who trust AllThings.How
Add us as a preferred source on Google so our practical guides show up first next time you search.
Add to Google Preferences →How to confirm the Big Pack achievement unlocked
The moment a teammate equips the backpack onto your character, a white backpack icon appears at the bottom of the screen. That icon confirms the bag is on. The Big Pack trophy pops immediately after, with no extra objective required beyond wearing it once.

If the trophy does not appear, the usual reason is that no one has actually placed the bag on you yet. You cannot equip it on your own character, so a second player has to complete the action for the achievement to trigger.
How the backpack works after you equip it
Once worn, the backpack lets you carry two items instead of one. One item stays in your hands, and the second rides in the bag. The system leans heavily on cooperation, so a few rules are worth remembering before you rely on it.
| Action | Who can do it |
|---|---|
| Put the backpack on your character | A teammate only |
| Remove the backpack from your character | A teammate only |
| Store an item inside the backpack | A teammate only |
| Carry one item in your hands | You |
Anything stored in the backpack stays put even if you fall or tumble, which makes the bag more secure than holding an item in your hands. That protection is the main reason to route important puzzle items through the backpack rather than carrying them loose.
Other backpacks across the map
The Red Tower bag is only the first of several. More backpacks sit inside the same style of blue, circular building elsewhere on the map, and each structure holds a single bag. If you are playing in a small group, everyone can grab their own so the whole party gains extra carrying room. Some of these buildings also hold hip bags instead, which attach to your waist for even more inventory space.






