Elevator · Player guide
GRAIN ROT Elevator Symbols and Run Modifiers
The elevator panel is a pre-run warning system: it tells the crew what kind of problem or opportunity may exist below before the doors open.
Elevator symbol guide
Read the symbols before anyone leaves the elevator. Exit blockers come first, then visibility and floor hazards, and only then optional reward rooms.
| Visual | Meaning | What changes | Preparation |
|---|---|---|---|
| ⚡ Fuse | Broken elevator fuse | You cannot leave until a spare fuse is installed | Search chests and lockers immediately; keep extraction coins |
| ◉ Eye | Power outage | Most level lights are broken | Use the flashlight and protect stamina |
| ☠ Skull | Rot or heavier danger | Hazardous rooms and stronger pressure may appear | Carry fire and shorten the loot route |
| ⌁ Bear trap | Floor traps | Traps damage and briefly hold vessels | Watch doorways and room centers; Flying Heads ignore them |
| ▦ Map | Map room | A room contains a basic floor layout | Find it early on a long run |
| ⇩ Press | Hydraulic press room | A compact processor converts nearby objects into money | Bring suitable objects to the room |
| ◈ Keyhole | Extra locked or dead-end loot rooms | More side-room loot opportunities | Do not search them until the exit is ready |
| ? Cube | Higher-value loot roll | Expensive furniture, weapons or medkits are more likely | Set a firm greed limit before exploring |
Best order of operations
For a fuse run, find the replacement and install it before clearing optional rooms. For darkness or traps, slow the first room down and mark the safe path back. For map, press, keyhole or cube runs, prepare extraction before chasing the bonus.
When skull appears, plan for both Rot and heavier enemy pressure. Fire, a clear corridor and an early exit are useful under either version of the hazard.
Stacked symbols
Modifiers combine. A reward symbol does not cancel an exit blocker, and darkness makes every trap or enemy route harder to read. The crew should name the most dangerous combination before splitting up.
If a fuse, darkness and loot bonus appear together, the safe order is fuse search, elevator payment, then optional loot.
What to carry
A flashlight solves the eye condition, fire handles Rot, and an open inventory slot makes a fuse recovery easier. Coins are still required after the fuse is installed, so do not spend the extraction reserve.
In co-op, assign one player to the required object and another to route memory. That prevents a spare fuse or valuable item from disappearing into an unknown container.
Elevator symbol FAQ
What do GRAIN ROT elevator symbols mean?
They are run modifiers that can change exits, hazards, navigation, enemy pressure or rewards in the next Deep Layer descent.
Can several symbols be active at once?
Yes. Read the complete combination and solve every extraction requirement before chasing the reward.
Helpful links
Official pages, patch notes and practical walkthroughs for additional context.
Keep reading
When the fuse symbol appears, search chests and lockers for a bulb-shaped replacement, carry it back in hand and interact with the empty elevator fuse slot. Keep at least 40 coins available for extraction and follow the amount displayed by the elevator if it differs.
Beginner GuidePossess a vessel, descend in the elevator, gather useful resources or process furniture for gold, secure the extraction, and spend the haul on the Outpost. A broken vessel releases its Living Spark, but a full crew loss costs everything that was not already secured.
Enemies & the CorruptedCorrupted enemies react to sound, movement and nearby threats. Keep noise low, preserve an exit route and fight only when a threat blocks the objective. Learn each enemy by its movement and attack pattern, then use distance, cover or fire as the encounter requires.
Latest UpdatePatch 1.09, released August 28, 2026, is the latest available build. It improves Grinder navigation, fixes the Vibe Modulator, changes resting recovery to percentage-based values and resolves several clipping and saved-item issues.