How to Get the Belladonna Tunnel Black Star
Find Black Star #7, break the correct false wall, catch the Belladonna plant, and diagnose why Horrorticulturist did not unlock.
Black Star #7 is the Belladonna Tunnel puzzle and unlocks Horrorticulturist. Use Hole to inspect the tunnel, find the false wall behind the star area, break that wall with the sledgehammer or chainsaw, then catch the Belladonna plant that escapes.
Spoiler-light hint
The tunnel is not an infinite-hallway puzzle. Look for a wall that does not behave like the others, then be ready to chase what is released.
Exact solution
- 1Enter the Belladonna Tunnel and use Hole to inspect beyond the visible boundaries.
- 2Locate the false wall behind the Black Star area.
- 3Break the false wall with the sledgehammer or chainsaw.
- 4Chase and catch the Belladonna plant that escapes to complete the puzzle and unlock Horrorticulturist.
Alternate movement route
Hole + Bibble can be used to move under the wall instead of breaking it, but this is harder to control. Use the intended false-wall route unless you are deliberately practicing movement tech.
Why did the star or achievement not trigger?
I kept walking through the tunnel but nothing changed
Stop treating it as an infinite hallway. Inspect the wall behind the star area with Hole.
I broke a wall but no achievement appeared
Breaking the false wall only releases the Belladonna. You still need to catch the moving plant.
The plant escaped and disappeared
Search the nearby route immediately and retry the tunnel sequence if it can no longer be reached.
I think I already completed it
Check Steam for Horrorticulturist. It is the achievement marker for Black Star #7.
FAQ
Which Black Star is Belladonna Tunnel?
It is Black Star #7 in the playtester achievement order and corresponds to Horrorticulturist.
Is Belladonna Tunnel an infinite hallway puzzle?
No. The verified solution is to find the false wall, break or bypass it, and catch the Belladonna plant.
Can I use the chainsaw instead of the sledgehammer?
Yes. The playtester guide lists either tool for breaking the false wall.