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Stop Bouncing Between Outdated Slime Seas Guides

Slime Seas Wiki

This hub tracks the Slime Seas pages we've re-checked for the current build, so you can get the right guide before you waste time, materials, or rerolls.

Verified for Hub Island build

Start With Best Builds Open the Race Tier List

Best page for new players

Open the Mastery Guide first. Slime Seas builds are decided by weapon type (Katana / Greatsword / Scythe / Berserker), not class — and picking wrong costs rerolls.

Best page before spending rerolls

Race Tier List. Human rolls 48% of the time; you want at least an Uncommon (16-18%) before committing. Shadowborn and Dragonborn are the 0.25% Legendary targets.

Best page before farming bosses

Boss Drops. Rima at level 65 is the first farm; Ogre Lord at 255 is the crafting-material king with 41.58% Ogre Horns.

Freshest data on this site

Codes and Boss Drops are verified against the official Trello as of April 20, 2026. Races and Mastery data are sourced from Trello cards — exact buffs and PvP damage.

What Is Slime Seas?

Slime Seas is a fast-paced open-world action RPG on Roblox by the Slime Slaying Online group (creator: Chris_Burton). Beta launched January 22, 2026. You hunt slimes and bosses across 4 zones, upgrade a weapon-type Mastery (Katana, Greatsword, Scythe, or the gamepass-gated Berserker), reroll for one of 9 races, and craft gear at the Blacksmith. Guilds, Trading, and PvP are in the game alongside solo PvE progression.

Slime Seas Zones and Islands

Zone 1: Slime Forest

Lvl 0Island 1: Starter Island
Lvl 30Island 2: Crimson Ruins
Lvl 65Island 3: Rima's Spire· Demon Lord Rima

Zone 2: The Dunes

Lvl 90Island 4: Desert Island
Lvl 125Island 5: Guild Headquarters
Lvl 160Island 6: Sinbad's Keep· King Sinbad

Zone 3: Goblin Ruins

Lvl 190Island 7: Goblin's Landing
Lvl 220Island 8: Shattered Hollow
Lvl 255Island 9: Ogre Lord's Bastion· Ogre Lord

Zone 4: Shadow World

Lvl 315Island 10: Duskfall Isle
Lvl 360Island 11: Sovereign's End· Monarch Statue

11 islands across 4 zones. Source: official Slime Seas Trello Worlds list.

Slime Seas Progression Path

Levels 0-30: Starter Island → Crimson Ruins. Pick a Mastery (Greatsword is the safest first pick).
Level 65: Farm Demon Lord Rima at Rima's Spire for Iron Novice / Slime Lord armor.
Levels 90-160: Push into The Dunes; clear King Sinbad at Sinbad's Keep for the Thornblade.
Levels 190-255: Goblin Ruins zone; farm Ogre Lord for Ogre Horns and the Doomblade.
Level 315+: Shadow World; fight the Monarch Statue for Shadow Steel / Igris sets.

Best Pages for New Players

Mastery Guide — Katana / Greatsword / Scythe compared with PvP damage numbers.
Race Tier List — reroll Human (48% roll) to at least Uncommon before committing.
Active Codes — claim HUBISLAND, SLIMEPIECE, FREEBOOSTS, 1MILLIONVISITS on your first login.

Best Pages for Farming and Optimization

Boss Drops — Ogre Lord at 41.58% Ogre Horns is the top material farm.
Crafting & Blacksmith — first upgrade is free; dismantle duplicates into crystals.

How This Wiki Tracks Accuracy

All data on this site is sourced from the official Slime Seas Trello board (last scraped 2026-04-20), the Roblox Games / Badges / Thumbnails APIs, and cross-verified community pages. Each page has a Source line at the bottom of its main data table. When the developer updates the Trello, we re-pull and version the change.

Slime Seas FAQ

What is Slime Seas?+

Slime Seas is a fast-paced open-world action RPG on Roblox by the Slime Slaying Online group. Players fight progressively tougher slimes across four zones (Slime Forest, The Dunes, Goblin Ruins, Shadow World), upgrade Mastery for Katana / Greatsword / Scythe / Berserker, and farm 4 world bosses.

Is Slime Seas still in beta?+

Yes. Slime Seas launched Beta on January 22, 2026, and receives regular patches. The Beta Player badge confirms that launch date. Expect mastery balance and drop tables to shift between updates.

How many races are in Slime Seas?+

Nine races across five rarity tiers: Human (Common, 48%), Fishman and Skypiean (Uncommon, 16-18% each), Elf and Oni (Rare, 6-7.5%), Lunarian and Djinn (Fabled, 2%), Dragonborn and Shadowborn (Legendary, 0.25% each).

How many bosses are in Slime Seas?+

Four: Demon Lord Rima (level 65, 4,000 HP), King Sinbad (level 160, 15,000 HP), Ogre Lord (level 255, 45,000 HP solo / 90,000 trio), and Monarch Statue (level 360+, 160,000 solo / 300,000 trio).

Where do I redeem codes in Slime Seas?+

Open the in-game shop menu, find the code text box, paste a code, and press Submit. The codes page on this site lists the 4 currently active codes and the expired list.

Which Slime Seas guide should beginners read first?+

Start with the Mastery Guide (Best Builds) to pick Katana / Greatsword / Scythe. Then Race Tier List before using rerolls. Boss Drops and Crafting open up once you hit level 65 for Rima.