Slime RNG Glossary
Every Slime RNG term, currency, mutation and mechanic — explained in one sentence so you stop scrolling Discord trying to figure out what people mean.
- Letters
- 15
- Total terms
- 24
The Slime RNG glossary is the one-page decoder ring for every term, abbreviation and slang word you'll see in trade chat, the developer's patch notes and the in-game UI. Use the alphabet jump bar above to skip straight to a letter, or hit ⌘F / Ctrl+F to search this page directly.
New to the game entirely? Start with the Beginner Guide first, then come back here whenever a term trips you up. Stuck on mutations specifically? Open any slime detail page to see the term used in real combat context.
Slime RNG terms starting with
2 terms- Apple
- Consumable boost item that adds +5% Luck for 60 seconds. Stacks up to 6× — pop them all before a long roll session for the best return.
- Auto-Roll
- Toggle that automatically spends rolls until your roll counter is empty. Unlocks after 10 manual rolls. Pair with Luck Boost for hands-free farming.
Slime RNG terms starting with
1 term- Biome
- A unlockable zone with its own enemy slimes, exclusive drops, and Crafting Machine. Higher biomes have stronger enemies but better Goop / coin yields.
Slime RNG terms starting with
3 terms- Coins
- Primary in-game currency. Earned from defeating enemy slimes. Used to buy boosts and cosmetics. Reset on Rebirth.
- Cook Time
- How long a Crafting Machine takes to finish a recipe. Reduced by 30% while a Roll Speed Boost is active.
- Crafting Machine
- Stationary altar found in every biome. Combines specific ingredient slimes into a guaranteed result. Skips the RNG.
Slime RNG terms starting with
1 term- DPS
- Damage per second — how much damage a slime deals over time. Computed from base damage × attacks per second.
Slime RNG terms starting with
1 term- Equipped Slime
- The slime currently set as your active fighter. Only equipped slimes deal damage in arena fights and survive Rebirths.
Slime RNG terms starting with
1 term- Goop
- Rebirth currency. Drops from enemy slimes at a low base rate. Spent at the Rebirth altar to permanently multiply Luck and damage.
Slime RNG terms starting with
2 terms- Huge
- Mutation with a 1 in 1,000,000 additional chance on every roll. Huge variants have massive damage multipliers and bigger hitboxes.
- Huge Shiny
- The combined Huge + Shiny mutation. The rarest possible variant — both mutations must proc on the same roll.
Slime RNG terms starting with
2 terms- Luck
- Your hidden roll multiplier. Higher Luck = better odds of rare drops. Stacked through boosts, equipped Lucky Slime, codes, and Rebirth multipliers.
- Luck Boost
- Consumable that doubles your Luck stat for 5 minutes. The bread-and-butter rolling buff.
Slime RNG terms starting with
2 terms- Mutation
- A bonus property that can apply to a roll on top of the base slime — Shiny, Huge, or Huge Shiny. Crafted slimes never have mutations.
- Mythic
- The highest base rarity tier. Currently only Void Slime sits at Mythic. Drop odds: 1 in 10,000,000 base.
Slime RNG terms starting with
1 term- Odds
- The base drop chance for a slime, expressed as 1 in N. Modified by your active Luck multiplier — actual odds = base × Luck.
Slime RNG terms starting with
3 terms- Rebirth
- Prestige reset. Wipes your level and most progress in exchange for permanent Luck and damage multipliers. Unlocks at Level 25.
- Roll
- A single RNG attempt. Each roll independently checks the entire slime drop pool plus mutation rolls.
- Roll Speed Boost
- Consumable that doubles your roll rate. Best paired with auto-roll for marathon sessions.
Slime RNG terms starting with
2 terms- Shiny
- Mutation with a 1 in 500,000 additional chance on every roll. Shiny slimes get enhanced stats and a unique aura visual.
- Storage
- Long-term inventory that survives Rebirth. Move your rare slimes here before pulling the rebirth lever.
Slime RNG terms starting with
1 term- Tier
- Community-driven power ranking from SSS (top) down to C. Different from rarity — a high-rarity slime can still be a B-tier pick if its role is weak.
Slime RNG terms starting with
1 term- Ultra Luck Boost
- Premium boost that triples your Luck stat for 5 minutes. Best used at the start of an Ultra-Luck stack window with Apples and Lucky Slime equipped.
Slime RNG terms starting with
1 term- Value
- Community-estimated trade worth of a slime, expressed in coins or trade equivalents. Updates as the meta shifts.
Slime RNG terms · FAQ
The questions that come up most about Slime RNG slang, abbreviations and trade vocabulary.
What does 'Goop' mean in Slime RNG?
Goop is the rebirth currency in Slime RNG. You earn it from killing enemy slimes (~1 per 200 base rate), and you spend it to perform a Rebirth — which permanently multiplies your Luck and damage. The fastest farm is Lava Caverns + Huge Lucky + Goop Potion at ~30 Goop per 10 minutes.
What is a 'Huge' slime in Slime RNG?
A Huge mutation is a rare oversized variant of a normal slime — same drop pool, but rolled at roughly 1/100 the base odds. Huge slimes have boosted stats and trade for 5-20× the standard value. They can only come from RNG rolls, never from crafting.
What does 'Luck stack' mean?
A luck stack is the combined multiplier from every active luck source: Luck Boosts (codes, gamepasses), Apples, equipped Lucky Slimes and rebirth multipliers. They all stack multiplicatively, so 2× × 1.5× × 1.5× × 2× = 9× total luck — not the additive sum.
What's the difference between 'Shiny' and 'Huge'?
Shiny is a cosmetic-only mutation (~1/40 base rate) that doesn't change stats but commands a small trade premium. Huge (~1/100) boosts stats AND value. Huge-Shiny (~1/4000) is the holy grail — both effects combined. Each mutation is independent of the slime's base rarity.
What does 'PB' or 'priceless' mean in trade chat?
PB means 'Priceless / Display Only' — used for ultra-rare slimes (e.g. Void Slime) that don't have a stable community trade value. Their trades are negotiated case-by-case based on what each party will accept. Always run the Trade Calculator before agreeing to any priceless deal.