Sol's RNG Auras List by Rarity: Every Tier and Its Odds

Quick answer: how Sol's RNG aura rarity tiers work

Every aura in Sol's RNG has a "1 in N" chance, and the tier is just a label for the range that N falls into. Basic covers 1 in 1 to 1 in 999. Dimensional sits at the top of the normal scale, past 1 in 7.5 billion. Challenged and Challenged+ auras ignore the scale: they need a biome or condition first.

Everything below comes from the Sol's RNG Wiki (read on October 24, 2026), mainly its Auras page, which sorts every aura into tabs by tier. Nobody here rolled these odds in-game. The numbers are the wiki's, and the rarities are shown exactly as the wiki prints them. If you want to filter the same list by biome or by "obtainable right now", the aura catalog does that, and the tier list page groups the same auras by tier on one screen.

The tier ranges and how many auras are in each

The wiki defines each tier by the aura's rarity (or its "Collected Stat"). Here's the full ladder, with the number of auras the Auras page lists in each tab on the day it was read.

Add up the rollable tiers from Basic to Transcendent and you get 261 auras that the wiki lists as permanent rolls, before you count the 22 condition-locked Challenged and Challenged+ auras and the 8 crafted ones. The wiki's own overview paragraph gives a rougher total ("~435 auras in-game" as of Eon 1-21), and it flags that paragraph as possibly wrong, so the tab counts above are the better reference.

Two quirks make the ranges messier than they look. First, an aura that exists only inside one biome gets bumped up two tiers from where its odds would put it. The wiki's example is ★: its odds are 1 in 100 in Dreamspace, which would make it Basic, but it's filed as Unique. Same story for ★★ (1 in 1,000, filed as Legendary) and ★★★ (1 in 10,000, filed as Mythic). Second, Glitched-only auras such as Fault (1 in 3,000) also sit in Legendary for the same reason. So when an odd number shows up in a high tier, check the biome column.

How to read the tables

Each table shows the aura's normal rarity first. When the wiki lists a better chance inside a biome or time of day, that's in the second column. Rolling an aura outside its native biome is called a breakthrough (BT), and the normal rarity is the breakthrough rarity. "Only in" means the aura can't break through at all.

Basic auras (1 in 1 to 1 in 999)

Nothing on this list is worth chasing for its own sake. These auras matter because the first gears are crafted from them: the Luck Glove takes 2 Divinus, 1 Crystallized and 3 Rare, according to the wiki's Gears page. Keep a few of each. Nothing (1 in 1) only appears in The Limbo.

Epic auras (1 in 1,000 to 1 in 9,999)

Epic is the first tier with its own opening cutscene, and the wiki notes that rolling one posts a purple server message in chat. Watcher and Rekindle only roll inside The Radiant Forest.

Unique auras (1 in 10,000 to 1 in 99,998)

Solar and Lunar look identical on paper (1 in 50,000), but each one drops to 1 in 5,000 during its half of the day cycle. The wiki's Biomes page says Daytime and Nighttime switch every 2 minutes and 30 seconds, so these two come around far more often than their headline odds suggest. Pleiades, Pulsar and Constella are Singularity-only.

Legendary auras (1 in 99,999 to 1 in 999,998)

Mythic auras (1 in 999,999 to 1 in 9,999,999)

Mythic is the biggest permanent tier, with 58 entries. It's also where biome timing starts to matter a lot. Look at the Null auras: Undefined is 1 in 1,111,000 normally but 1 in 1,111 in Null, because the wiki gives Null a breakthrough multiplier of 1000x. Null lasts only 99 seconds, though, so you have to be rolling when it shows up.

A practical read of this table: the auras with a native biome are the cheap ones to farm, because the biome cuts their odds by its multiplier. Poseidon at 1 in 4,000,000 becomes 1 in 1,000,000 in Rainy. Twilight goes from 1 in 6,000,000 to 1 in 600,000 at night. The ones with no second column (Origin, Helios, Amethyst and so on) never get cheaper. If you're picking a Mythic to hunt, pick one with a biome you can actually catch.

Exalted auras (1 in 10,000,000 to 1 in 99,999,998)

Glorious auras (1 in 99,999,999 to 1 in 999,999,998)

Glorious is where "global" auras live. The wiki says every aura above 99,999,998 rarity (plus Glitch and Borealis) sends a message to every server and has a custom cutscene. Most of the 54 entries have a native biome that cuts the odds by 2x to 10x.

Transcendent auras (1 in 999,999,999 and up)

These six are the rarest auras that you roll through normal odds. The wiki adds two crafted Transcendent auras, Abyssal Hunter : Awakened and Matrix : Steampunk, and says Event auras like Erebus and Challenged auras like Leviathan aren't counted here even when their odds pass one billion. The rarest auras guide works out how many rolls each of these takes at different luck levels. (Equinox and Luminosity are the two with no biome help at all.)

Challenged and Challenged+ auras

These tiers don't follow the number ranges. A Challenged aura needs a condition before it can roll at all: a specific biome, a potion, or a collection goal.

Six of these ignore luck completely: Memory and Oblivion (from the Oblivion Potion), Neferkhaf (Potion of the Dune), Fragments of the Crimson Moon (Red Moon Potions), and Meta and Illusionary (Cyberspace). The wiki's Luck page explains that fixed-rarity auras like these get checked first in the roll, so no luck stack makes them any easier.

Craftable auras

The Auras page says these eight are the only auras that can be crafted. MasterHand is the only Dimensional aura in the game, and it can't be rolled.

Which auras can't be obtained right now

Here's the short version, without listing every name. The wiki's Event tab holds 169 limited auras, from Valentines 2024 through Summer 2026, plus a handful tied to seasons, special biomes and admin events. Halloween 2025 alone added 30 of them, including Erebus at 1 in 1,200,000,000 in Blood Rain. On top of that, 19 auras are Dev Exclusive or otherwise unobtainable (developer, content creator, tester and unreleased auras), and 19 more sit in the Removed tab.

The wiki marks Event auras as "Limited", which means they're only rollable while their event runs. On October 24, 2026, the wiki's update log (Updates/Eons) ended at Eon 1-26.5 from August 15, 2026, even though the Biomes page already mentions Eon 1-30. No Halloween 2026 entry was on the wiki yet, so this guide doesn't say which Halloween auras are live. Check the update log and the biomes page for that.

Where to go next

New players should start with the beginner's guide. If you want to know why a 1 in 10,000,000 aura isn't really "10 million rolls away" once you have gear on, read how luck works, or put any rarity from these tables into the probability calculator.

Sources

• Auras (Sol's RNG Wiki)
• Biomes (Sol's RNG Wiki)
• Gears (Sol's RNG Wiki)
• Luck (Sol's RNG Wiki)
• Updates/Eons (Sol's RNG Wiki)