Backpack and Inventory at a glance
| Numbered slots | 4 (keys 1 to 4), bottom right of the screen |
| Backpack | Its own slot beside the four, with a small counter |
| Take an item | Press its slot number |
| Put it away | Q |
| Drop it | X |
| Not seen | Backpack size, or a dedicated open key |
Keys for carrying items
The bottom right of the screen shows four numbered slots. Take an item with its number, put it away with Q and drop it with X.
A backpack appears in its own slot with a small counter beside it, so it looks like extra carrying space, though we haven't tested how it works or how much it holds.
What to keep in the four slots
Two runs that picked up bolt cutters did it on Day 4 and Day 5, and the tool slot has to be free to hold them. Water containers, a screwdriver or toolbox for vent covers and your weapon all compete for the same four slots, so put away what you aren't using.
Inventory tips
- Keep the tool slot free so you can pick up a screwdriver or bolt cutters when the objective needs them.
- Put items away with Q instead of dropping them with X, so you don't lose them in a hurry.
- Check the item tag (WATER, TOOL, WEAPON, COOKING, KEY or MATERIAL) before deciding what to carry.
FAQ
How do you open the backpack in 30 Floors Up?
We haven't seen a separate key for it. It shows in its own slot beside the four numbered slots, and we haven't tested how it works.
How many items can you carry in 30 Floors Up?
Four in the numbered slots, plus a backpack slot beside them.
How do you drop an item in 30 Floors Up?
Take it with its slot number, then press X.
How do you put an item away?
Press Q.
More 30 Floors Up pages
- 30 Floors Up Controls
- 30 Floors Up Items and Tools
- 30 Floors Up Bolt Cutters: Where to Find Them
- 30 Floors Up beginner guide
- 30 Floors Up codes
- 30 Floors Up wiki: live stats
Sources
Checked Nov 14, 2026. Community wikis are edited by players, so numbers marked “per” one wiki may change after an update.