The Hollow Floor 3 Grave Puzzle: Get the Festering Felix Relic

What Floor 3 actually asks you to do

Take the cinema elevator in the hub and pick Floor 3 (the third night). The maze changes every time you enter, so there is no fixed route — explore until you reach a grave room: eight gravestones around a coffin, with a poem on the wall. The Biter from Demonology patrols while you work.

Solving the coffin lock drops the Third Night Relic. Carry it back to the elevator without getting caught, return to the hub, and you unlock the Festering Felix head accessory and its badge. The badge only lands after you actually deliver the relic — opening the coffin alone is not the finish line.

One line tells you the answer

The poem on the wall asks for the three people who lived the shortest lives. Each gravestone shows a symbol, a name, a birth year and a death year — but no age. So the job is: lifespan = death year − birth year, then pick the three smallest lifespans.

Watch the trap: the question is the shortest lives, not the three earliest death years. A stone that says 1900–1950 (50 years) beats one that says 1850–1890 (40 years) only if 40 is smaller — always compare the computed age, never the death year.

Solve it in six steps

1. Ride the hub elevator to Floor 3 (third night). Avoid the Biter as you move.
2. Explore the shifting maze until you find the grave room — eight stones plus a coffin.
3. Read the poem by the entrance. It confirms you want the three shortest lives.
4. Walk up to all eight gravestones and note each symbol with its birth and death year.
5. Subtract birth from death for every stone, then take the three smallest ages.
6. At the coffin's Grave Lock, set slots I, II, III to those symbols, shortest first, and press Open. Grab the relic and run back to the elevator.

Enter your own numbers

The puzzle is randomised per player and resets when you restart the floor, so a copied answer is wrong. Use the solver below: choose the symbol you saw on each stone, type the years, and it returns the lock order for your run.

What each gravestone icon looks like

These are the eight symbols that appear on the stones. Match each to the stone you read so the solver lines up — the illustrations below are drawn for this guide.

There is no single answer

The birth years and symbols on the gravestones are randomised for each player and change again if you restart the floor. That is why generic “Floor 3 code” posts are unreliable: someone else's combination will not match your stones. The method above is constant; only the numbers move.

What you get, and until when

The Floor 3 puzzle grants the Festering Felix head accessory and a badge — both free, no Robux required. They are separate from the Biter Fedora, which comes from the Demonology partner-game altar quest.

The Hollow runs October 22 – November 2, 2026, with a live finale on October 31 and rewards claimable until noon PST on November 2. After that the maze is gone, so finish the relic run before the cutoff.