The Floor Hatch is one of the two centerpieces that make a secret room worth finding, the other being the Random Secret Portal.
Down hatches
A down hatch leads to the Underground. Community sources describe it as looking like a rainbow-coloured floor tube, and warn that camels are down there — along with a further portal.
Up hatches
An up hatch leads to the Dark Zone. These spawn only after The Necromancer has been defeated, and the Grand Jump spell is needed to get up through one. Players describe them as small, dark holes in the ceiling that are easy to miss, quite unlike the rainbow down hatches, and report that they can also appear outside secret rooms.
Compiled from what this wiki already says on Rooms, Secret rooms, Underground, Dark Zone. No new facts were added.
Sources and community notes
- All of the hatch detail above comes from the Secret Rooms guide and its comment thread, including the confirmation that up hatches require the Necromancer to have been beaten and that they are not exclusive to secret rooms.
Community-sourced (added October 2026, not yet verified in-game). Sources: Steam guide: Secret Rooms and You by Slunky.