About Duller (The Backrooms)
What the creator says, alongside confirmed listing details.
Duller (The Backrooms) is a community item for Human Fall Flat listed on Steam Workshop.
Dullers are strange creatures generally found in the lower levels of The Backrooms. They appear dark grey and humanoid, but they lack several prominent features, such as a face or ears. It is not fully understood how Dullers kill their prey, as they usuall
Mod details
- Game
- Human Fall Flat
- Creator
- Mark_Blume
- Category
- Unclassified
- Published
- December 14, 2022
- Last Workshop update
- December 14, 2022
- Workshop item
- #2901578554
Screenshots
1 image from the mod listing
Timeline
Key dates from the original listing and ModOrNot's catalogue.
-
First published
The item was first published on Steam Workshop. Steam listing ↗
-
File last updated
Latest file-change date reported by Steam Workshop. Steam listing ↗
Why it ranks here
Duller (The Backrooms) currently has 81 subscribers. Recent growth metrics are unavailable; the last calculation was 42d ago.
Metrics from 3 stored snapshots. How ModOrNot ranks mods →
Subscriber change since tracked
View change since tracked
Favorite change since tracked
Platform availability
Availability is only claimed when an official source proves it. A platform we cannot verify is shown as “Not verified” — we never assume a PC Workshop mod runs on a console.
More Human Fall Flat mods
| Mod | Subscribers | 7d | Score |
|---|---|---|---|
| 310 | +143 | 99.7 | |
| 435 | +139 | 99.7 | |
| 249 | +160 | 99.5 | |
| 306 | +136 | 99.5 | |
| 867 | +451 | 99.4 |
Frequently asked questions
How popular is Duller (The Backrooms) compared with other Human Fall Flat mods?
It ranks #12,681 among 220,954 tracked active Human Fall Flat mods by subscribers — within the top 5.74%. This is a subscriber-based position, not a quality verdict. Counts and placement can change as the catalogue updates.
Is Duller (The Backrooms) available on PC?
The official Steam Workshop listing establishes PC distribution for Human Fall Flat. This does not verify current downloadability or compatibility with every PC configuration. Official source ↗
When was the mod last updated?
The source listing reports December 14, 2022 as the last file update. A later comment or catalogue refresh does not mean the mod file changed. Official source ↗
What does the ModOrNot Score mean on this page?
It is a 0–100 momentum signal: 50% subscriber-growth velocity relative to mods in the same game, 20% favorite growth, 20% view growth, and 10% update recency. It is not a quality rating. A recent score is unavailable for this mod, so no estimated value is shown.
Are these the real Steam Workshop numbers?
ModOrNot stores public Steam Workshop counts from its collection runs. The totals shown here are the latest counts stored in our catalogue; changes over time are calculated from recorded observations, not invented values. They can differ from the live listing until the next collection.
How is the rank computed?
ModOrNot compares tracked active Human Fall Flat mods by their current stored subscriber totals. Rank #1 has the most subscribers; equal totals share a rank. The rank is calculated when this page loads and can change as counts or the catalogue change.