Arachnophobia
How many rolls Arachnophobia takes
| Your luck | Expected rolls |
|---|---|
| 1× | 940,000,000 |
| 2× | 470,000,000 |
| 5× | 188,000,000 |
| 10× | 94,000,000 |
| 100× | 9,400,000 |
Expected rolls = N ÷ luck. Each roll is independent, so it can take far more or far fewer. Open in the calculator →
Aura facts
Rarity
1/940M
Tier
Event
Biome
Pumpkin Moon
Biome-exclusive
Added in
Eon 1-9
Pumpkin Moon appears with 1 in 3 (33.3%) chance each Nighttime during Halloween events and lasts Until Nighttime ends. Biome details →
Why it is unobtainable: Limited to the Halloween 2025 event, which has ended
Credited on the wiki to: idkwhyiimhear, SkibVFX
About Arachnophobia
Arachnophobia was the hardest Halloween 2025 aura to land, and the Sol's RNG Wiki has numbers to prove it. It was an Event tier aura added in Eon 1-9 and rolled at 1 in 940,000,000 only inside the Pumpkin Moon biome. That is about 940 million rolls at luck 1x, or 94 million with 10x luck. The wiki also reports it had the lowest owner count of that year's Halloween auras, 2,153 at the time, and gives a reason: Pumpkin Moon has only one other global aura, so many players spent their potions on Graveyard or Blood Rain instead. It is no longer obtainable.
The scene is a giant spider on a giant red web held up by large rocks, with a blood moon behind and random symbols rising, plus red wave-like particles. The wiki notes the model has only six legs and comes from Scylla in the Legendary Godzilla series. It received a small rework and a music change on 20 October 2025, reportedly over copyright.
Credit goes to idkwhyiimhear and SkibVFX.
Auras with similar odds (Event)
Frequently asked questions
How rare is Arachnophobia in Sol's RNG?
The Sol's RNG Wiki lists Arachnophobia at 1 in 940,000,000, in the Event tier. With base luck that averages 940,000,000 rolls; with 10× luck, about 94,000,000.
Can you still get Arachnophobia?
No. The wiki marks it as unobtainable: Limited to the Halloween 2025 event, which has ended.
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.