The Hollow Roblox Floor 3 is the Demonology floor, and its puzzle is a gravestone reading task: the hint tells you to pick the three people whose lifespans were the shortest, and the three dials on the locked coffin take one symbol each — a Witch Hat, a Bat and a third symbol — set in the order I, II and III from the youngest of the three to the oldest. Set them correctly and the coffin opens on the key Relic.
The floor loop every run repeats
Floor 3 opens on Day 3. The maze layout is randomized each time you enter, so treat every run as a fresh map. The loop is:
- Ride the elevator up and pick Floor 3.
- Find the puzzle room.
- Solve the puzzle.
- Take the Relic.
- Carry the Relic back to the elevator.
Biter is active on this floor the whole time you work. If it catches you on the way out, you respawn in the hub without the Relic and have to redo the puzzle — including reading every gravestone again. The maze and puzzle guide has the shared rules for every floor.
Getting into the catacombs
Find the glowing portal doorway that leads to a Dead Rails desert set, then cross the purple energy barrier. Past it is a circular stone catacomb chamber lined with skull shelves and wooden crates.
The catacombs hold three rooms. Two of them contain gravestones and a hint placard. The third, reached through a tunnel, holds the rest of the graves plus the locked coffin. So the reading and the final lock are not in the same room, and the tunnel back is the part of the route worth planning before you commit.
Reading the gravestones
Each gravestone gives you three things: the birth year, the death year and the symbol the person is marked with. The lifespan is simply the death year minus the birth year, and the puzzle hinges on the three shortest of them.
Two of the three rooms hold graves with a hint placard nearby, and the tunnel room holds the rest of them. Read every grave you can reach before you touch the dials, because the three shortest may be spread across all three rooms.
The Hollow Roblox floor 3 puzzle: the three coffin dials
The coffin has three dials and each one takes a symbol — a Witch Hat, a Bat and a third symbol. The order of the dials matters:
- Work out the three shortest lifespans from the gravestones.
- Take the symbol from each of those three graves.
- Set dial I to the symbol of the youngest of the three, dial II to the middle one and dial III to the oldest.
The names, dates and symbols are randomized for every player, so the answer is always the one you read off your own graves. If the dials are wrong the coffin stays shut and you read the graves again.
Biter punishes standing still
Biter is a fast close-quarters chaser. Standing still to study a gravestone is exactly the mistake it punishes, so read quickly, keep moving between graves, and use closets and wardrobes to break it off when it closes in. Rooms whose entrance has a blue static effect are safe zones, and so are the puzzle room and the elevator. The evasion guide has the full floor-by-floor list.
What Floor 3 pays out
Completing Floor 3 awards the Day 3 maze prize, the Festering Felix badge and its matching UGC item, plus the Floor 3 Relic.