Question 1

What is Slime RNG?

Accepted Answer

Slime RNG is a Roblox luck-based collection game. You roll an in-game RNG to summon slimes, fight enemy slimes for coins, craft rare variants at Crafting Machines, and prestige through the Rebirth system for permanent multipliers.

Question 2

Is Slime RNG free to play?

Accepted Answer

Yes. The base game is fully free. You can speed up rolls or buy cosmetic gamepasses with Robux, but every slime — including the 1-in-10M Void Slime — is obtainable without spending anything.

Question 3

How do I roll slimes?

Accepted Answer

Tap the Roll button at the center of your screen. Your first 10 rolls are tutorial-paced. After that you unlock auto-roll, which you should pair with stacked Luck Boosts for the best ROI.

Question 4

Where do I redeem codes?

Accepted Answer

Open the in-game Shop menu, scroll to the Codes tab, paste the code (case-sensitive), and hit redeem. See our /codes page for all currently working codes.

Question 5

What is a Huge slime?

Accepted Answer

Huge is a mutation that can roll on top of any slime at a 1 in 1,000,000 additional chance. Huge variants get massive damage multipliers and a larger arena hitbox. The base slime's rarity still applies — so a Huge on a Common is rarer than a Huge on a Rare.

Question 6

What is a Shiny slime?

Accepted Answer

Shiny is a mutation with a 1 in 500,000 additional chance per roll. Shiny variants get enhanced stats and a unique visual aura. They stack with Huge — yes, Huge Shiny is a real thing, and it's the rarest possible variant.

Question 7

Can crafted slimes roll Huge or Shiny?

Accepted Answer

No. Mutations only apply to RNG-rolled slimes. Crafted slimes always come out at base stats. If you want a Huge variant, you must roll the base slime during a successful Huge proc.

Question 8

What's the rarest slime in Slime RNG?

Accepted Answer

Void Slime at 1 in 10,000,000 base odds. With Huge or Shiny mutations stacked on top, the combined odds become astronomical — most players never see one without sustained Luck stacking and rebirth multipliers.

Question 9

When should I do my first Rebirth?

Accepted Answer

Wait until Level 25 + Candy Land main quest cleared. Going earlier is a trap — the multiplier doesn't make up for the lost progress. Most players rebirth around the time they can re-clear unlocked biomes in under 30 minutes.

Question 10

What do I lose when I Rebirth?

Accepted Answer

You lose: level (resets to 1), coins, equipped consumable boosts, and any slime not in long-term storage. You keep: collection book, redeemed codes, rebirth count, and slimes stored before the rebirth.

Question 11

How do I get Goop fast?

Accepted Answer

Best current method: Lava Caverns biome + Huge Lucky equipped + active Goop Potion. Expect ~30 Goop per 10 minutes. Frozen Tundra is the second-best biome thanks to its native 2× drop modifier.

Question 12

Are crafted slimes worth it?

Accepted Answer

For mid-game shortcuts, absolutely. Orca, Magma Slime and Frostbite Slime are all crafted and easily worth the ingredients. The trade-off: you skip the chance at a Huge mutation. For chase slimes, always roll. For utility, always craft.

Question 13

Why isn't my code working?

Accepted Answer

Three usual causes: (1) the code is case-sensitive — copy from our /codes page exactly; (2) the code already expired; (3) one-time codes already redeemed on your account. Our /codes page marks active vs expired so you don't waste time on dead codes.

Question 14

Do codes give the same reward every time?

Accepted Answer

Yes. Each code's rewards are fixed and one-time per account. You cannot redeem the same code twice on the same account.

Slime RNG FAQ

Getting Started

Slimes & Mutations

Rebirth & Endgame

Crafting & Codes