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19 tiers documented · roll odds + mutation multipliers

Every rarity tier.

Slime RNG’s 19-tier rarity system, ordered Basic through Stellar. Each tier has its own roll-odds range and Big / Shiny / Huge / Inverted mutation multipliers. Numbers below are sourced from the Fandom database (May 2026). Plug any tier into the luck calculator to see your actual effective odds.

19Tiers

1/3Highest roll (Basic)

1/14.9QdLowest roll (Stellar)

×1,800Inverted max multiplier

Multi-source verifiedColor-matched to game UI

All tiers

19 documented

Basic1/3 – 1/5

Basic

The starting pool. Goopy and Sunset land here on every roll.

Roll odds: 1/3 – 1/5
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: tier-gated
Inverted mutation: ×2,500
Verification: multi source verified

Common1/8 – 1/11

Common

Early-game roll pool. Fin and Leafy fall here.

Roll odds: 1/8 – 1/11
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: tier-gated
Inverted mutation: ×2,500
Verification: multi source verified

Uncommon1/35 – 1/57

Uncommon

Slightly rarer pool: Meow, Glo. Common between Forest and Volcano zones.

Roll odds: 1/35 – 1/57
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: tier-gated
Inverted mutation: ×2,500
Verification: multi source verified

Rare1/103 – 1/415

Rare

Buggy, Boomy, Brutis, Frankenslime. First named pool you actively chase.

Roll odds: 1/103 – 1/415
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: tier-gated
Inverted mutation: ×2,500
Verification: multi source verified

Epic1/719 – 1/4.27K

Epic

Orca, Spike, Axolotl, Spidey. Mid-game progression begins here.

Roll odds: 1/719 – 1/4.27K
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: tier-gated
Inverted mutation: ×2,500
Verification: multi source verified

Legendary1/4.27K – 1/13.9K

Legendary

Spidey, Mushy, Rocky. Solid mid-to-late team pieces.

Roll odds: 1/4.27K – 1/13.9K
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: tier-gated
Inverted mutation: ×2,500
Verification: multi source verified

Mythic1/21.5K – 1/57.4K

Mythic

Lucky, Stump, Lily, Crafty. Lucky's passive aura becomes essential here.

Roll odds: 1/21.5K – 1/57.4K
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Divine1/86.1K – 1/330K

Divine

Icy, Orbit, Aegis, Wicked, Thorn. First tier with documented Huge variants.

Roll odds: 1/86.1K – 1/330K
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Prismatic1/538K – 1/3.11M

Prismatic

King, Guest, Ninja, Buzz, Stormy, Geode. Prismatic Pokey unlocks team utility.

Roll odds: 1/538K – 1/3.11M
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Transcendent1/4.78M – 1/17.9M

Transcendent

Bucky, Pokey, SlimeSlime, Unicorn. Late-game rarity band.

Roll odds: 1/4.78M – 1/17.9M
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Ethereal1/26.9M – 1/195M

Ethereal

Wizzy, Petal, SlimeSlimeSlime, Shelly, Derpy, Octo, Puffy, Halo.

Roll odds: 1/26.9M – 1/195M
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Secret1/307M – 1/2.77B

Secret

Bomber, UFO, Witchy, Blackhole, Ember, Astro, Pumpkin. Crafting target territory.

Roll odds: 1/307M – 1/2.77B
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Celestial1/4.39B – 1/34.2B

Celestial

Ouchy, Sharky, Dino, Sunny, Monke, Prickly, Zoomy. Past most players' rebirth-1 reach.

Roll odds: 1/4.39B – 1/34.2B
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Astral1/50.1B – 1/414B

Astral

Waxie, Drakey, Germy, Palmy, Melly, Snazzy, Bemmy. Endgame-2 territory.

Roll odds: 1/50.1B – 1/414B
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Nova1/673B – 1/6.95T

Nova

Mato through Galaxy. The transition band from billion-scale odds into trillion-scale hunts.

Roll odds: 1/673B – 1/6.95T
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Solar1/11.3T – 1/67.3T

Solar

Painty through Zappy. Current late-game tier after the UFO-era rarity expansion.

Roll odds: 1/11.3T – 1/67.3T
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Lunar1/107T – 1/652T

Lunar

Bacon Hair through Frenchy. A deep endgame band before quadrillion-scale Galactic odds.

Roll odds: 1/107T – 1/652T
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Galactic1/1.02Qd – 1/9.57Qd

Galactic

Eggy through Sushi. Current quadrillion-scale rarity tier, no longer historical.

Roll odds: 1/1.02Qd – 1/9.57Qd
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Stellar1/14.9Qd+

Stellar

Knighty and future top-end Slime RNG slimes documented in the current Fandom list.

Roll odds: 1/14.9Qd+
Big mutation: ×100
Shiny mutation: ×250
Huge mutation: ×1,000
Inverted mutation: ×2,500
Verification: multi source verified

Editor’s note

The rarity tier chart is misleading on its own. A Mythic-rarity slime can deal less damage than a well-rolled Legendary. Always read rarity in context of damage and tier-list rank, not in isolation. The foil treatment on this page is decorative; the stats are the truth.

The Slime Desk · 2026-05-15

How to read rarity

Rarity is the floor, not the verdict

A higher rarity tier means the base roll is harder to hit. It does not automatically mean the slime is better for your current team. Before locking in a hunt target, compare the slime’s damage, passive role, and tier-list placement.

Mutations change the chase

Big, Shiny, Huge, and Inverted variants multiply the base odds. A realistic base hunt can become a multi-session target once you add a rare mutation, so stack codes, rebirth luck, and passives before chasing variants.

Use exact odds for planning

The range on this page helps you understand scale. For a real route decision, open the slime detail page for the exact denominator, then run that number through the Luck Calculator.

Rarity FAQ

4 entries

What is the rarest Slime RNG rarity tier?

Stellar is the rarest documented rarity tier in this chart, with the lowest listed range around 1/14.9Qd before luck and mutation math. Individual slime odds can still differ inside a tier, so check the slime page before planning a hunt.

Does higher rarity always mean stronger?

No. Rarity controls how hard a slime is to roll, not whether it is your best combat pick. Damage, passive utility, Power Fruit setup, and team role decide whether the slime belongs in your equipped roster.

What do Big, Shiny, Huge, and Inverted multipliers mean?

They describe how much harder a mutation variant is compared with the base slime. If a base slime is already rare, a Huge or Inverted version can become a long-term chase target even for players with strong luck stacks.

How should I use this chart before a hunt?

Use the rarity row to set expectations, then put the exact slime odds into the Luck Calculator. The chart tells you the scale of the chase; the calculator tells you whether your current stack makes the session realistic.