Fin is a B-tier common slime in Slime RNG, locked to the Beginner Pond biome. Drop odds: Common roll. Combat role: Early DPS.
Your first real damage dealer. Don't sleep on Fin — it carries new players through the first three biomes without a fuss.
Default roll pool from level 1 — every new account rolls Fin within the first 5–10 pulls
Drops freely in Beginner Pond biome — the highest concentration in the game
Drops occasionally during Candy Land grinds, but at significantly lower rates
Use Fin as a Crafting Machine ingredient for Orca and other mid-tier recipes
Early DPS. With 45 damage and 1 speed, best slotted in mid-game biomes — graduate to a higher-tier slime when farming endgame.
Locked to the Beginner Pond biome — unlock it first via the biome chain. Roll exclusively inside that biome to keep Fin in the drop pool.
Duplicates fuel the Crafting Machine — see the Crafting page for recipes that use this tier. Always run the Trade Calculator before sealing a deal.
Trade value drifts with each patch — new slimes shift demand, codes shift supply. Cross-check against the live Tier List and the Trade Calculator before locking in any deal involving Fin.
Fin is the slime every Slime RNG account starts with. It's the friendly tutorial-zone Common that drops within your first ten rolls, gets you through Beginner Pond and into Candy Land, and then quietly fades into the inventory while you chase rarer pulls. But independent wikis are unanimous on one detail that newer players miss: Fin is the best early-game damage option, period. Its 45 damage and 1.0 speed hit a baseline sweet spot that no other Common matches, and the unrestricted biome access means you can keep farming it while you progress. Every veteran has a soft spot for Fin — it's the first slime that proves the game is going to feel good.
The build literally everyone starts with. Run this through Beginner Pond and into the first 30 minutes of Candy Land. The moment Spike or any Uncommon drops, swap it into the lead slot.
Once you've outgrown Fin's combat utility, switch its role to crafting fuel. Hold 4–6 Fin duplicates and feed them into the Orca recipe progressively — the guaranteed Rare-tier return is the highest-EV use of duplicate Fins.
Fin trades in the 50M–150M Coin band — the bottom of the Slime RNG trade economy. Demand is essentially zero from veterans (they have plenty), and the only buyers are brand-new accounts trying to skip the first hour of farming. Most Fin 'trades' are actually crafting-machine inputs in disguise; a duplicate Fin fed into the Orca recipe produces strictly more value than a 150M coin sale. Don't waste time listing Fin in trade chat — it's faster to just farm a fresh one in Beginner Pond.
Drop weight in Beginner Pond increased to ease new-player onboarding.
Launch — introduced as the B-tier Common starter slime in Beginner Pond.
Same biome or mutation pool — natural follow-up chases once you've locked in Fin.
The questions players ask about Fin most — answered with the live stats above.
Fin drops at Common roll from the Beginner Pond biome. The fastest path: default roll pool from level 1 — every new account rolls fin within the first 5–10 pulls. Stack Luck Boosts, Apples and an equipped Lucky Slime before opening rolls — see the step-by-step guide above.
Fin's base drop rate is Common roll before luck multipliers. Active Luck Boosts, Apples, equipped Lucky Slimes and rebirth multipliers all stack to lower the effective denominator — use the Luck Calculator to see your real odds for the current pull.
Fin is currently rated "50M – 150M Coins" and fills the Early DPS role in combat. Keep at least one for collection bonuses; duplicates can be traded or fed into the Crafting Machine for guaranteed mid-rares.
Fin drops from the Beginner Pond biome — make sure you've unlocked it before opening rolls. See the Biomes page for the full unlock chain.
Fin sits at B-tier with common rarity, 45 damage and 1 speed. See the full Slime RNG Tier List for how it ranks against every other slime in its bracket.