Forbidden
How many rolls Forbidden takes
| Your luck | Expected rolls |
|---|---|
| 1× | 403 |
| 2× | 202 |
| 5× | 81 |
| 10× | 40 |
| 100× | 4 |
Expected rolls = N ÷ luck. Each roll is independent, so it can take far more or far fewer. Open in the calculator →
Aura facts
Rarity
1/403
Tier
Basic
Biome
Cyberspace
Biome-native
Added in
Era 7
Inside Cyberspace the wiki lists: 1 in 202
Cyberspace appears with 1 in 5,000 when using the Strange Controller or Biome Randomizer and lasts 12 minutes. Biome details →
Credited on the wiki to: trickyman722, madebytrophies
About Forbidden
Error 403 is the joke behind Forbidden's number. It is a Basic aura from Era 7 with 1 in 403 odds (1 in 202 in Cyberspace), and before Eon 1-4.5 it was 1 in 404, a nod to "Not Found"; the change to 403 refers to the "Forbidden" status. In practice it takes around 403 rolls at 1x luck, or 20 in Cyberspace at 10x. The Sol's RNG Wiki credits trickyman722 and madebytrophies.
The wiki says the aura is based on the old Glitch but with less detail and blue instead of green. The player stands in a glitching animation like Aegis, with the right hand covering the face and hiding a blue-white warning symbol. A line that says FORBIDDEN⊘ rotates slowly around, and many blue and white rectangles appear. The font is now Sarpanch, formerly Josefin Sans, and the name is shown in italics.
Its crafting uses are heavy: 2,000 copies for the Exoflex Device, 4,000 for the Hologrammer and 37,000 for the Darkshader. Dizzy later became the next Basic aura added to the Overworld.
Auras with similar odds (Basic)
Frequently asked questions
How rare is Forbidden in Sol's RNG?
The Sol's RNG Wiki lists Forbidden at 1 in 403, in the Basic tier. With base luck that averages 403 rolls; with 10× luck, about 40.
Can you still get Forbidden?
Yes. The wiki lists it as obtainable, and it is tied to the Cyberspace biome.
Data taken from the Sol's RNG Wiki (CC BY-SA), organized with AI assistance; nothing here is tested in the game; wiki read on 2026-10-24.