🧬 Quick Overview
Steal a Brainrot launched with just 2 permanent mutations (Gold and Diamond). Since then, Sammy has introduced a new seasonal mutation roughly every 4–8 weeks via Admin Abuse events. There are currently 14 mutations total (12 documented + 2 legacy). Three are always obtainable — Gold, Diamond and Rainbow. The rest only appear during specific events.
📋 QUICK REFERENCE — ALL MUTATIONS
⏱️ FULL RELEASE TIMELINE
🟡 Gold
1.25×
✅ Always obtainable
📅 May 16, 2025 — present (launch)
The first and most common mutation in the game, present from day one. Brainrots with Gold mutation spawn naturally on the Red Carpet with no event required. Gives a golden hue. The most common mutation in the entire game — and the foundation of the whole system.
💎 Diamond
1.5×
✅ Always obtainable
📅 May 16, 2025 — present (launch)
Also present at launch alongside Gold. Diamond gives brainrots a blue, crystal-like appearance and a 1.5x income multiplier. It spawns naturally on the Red Carpet — less common than Gold, but still obtainable at any time without events.
🌈 Rainbow
10×
✅ Always obtainable (very rare)
📅 Early 2025 — present
The only high-multiplier mutation that spawns naturally on the Red Carpet at any time — no event required. Rainbow gives a full rainbow color effect and a 10x income multiplier, making it the best always-available mutation. Extremely rare to find on the belt without boosted luck. The Rainbow Machine event (activated by admins during Admin Abuse) temporarily increases its spawn chance on the conveyor.
🩸 Bloodrot
2×
🔒 Legacy — no longer obtainable
📅 June 7, 2025 — Bloodmoon Event (briefly returned 2026)
The first seasonal event mutation in SAB history. Applied during the Bloodmoon event — when the entire map turns red and random brainrots on the conveyor belt receive the Bloodmoon mutation. With only a 2x multiplier it became legacy as stronger mutations replaced it. Briefly returned in a 2026 event. Brainrots with Bloodrot owned by veteran players are rare collector's items.
🌙 Celestial
Unknown
🔒 Legacy — no longer obtainable
📅 Unknown (Celestial Event — Summer 2025)
The Celestial mutation gave brainrots a moon icon above their name and a purple aura. Applied during the Celestial event — a developer-only event. Its exact income multiplier was never officially disclosed by the developers, making it unique in that regard. Now legacy and no longer obtainable through normal gameplay.
🍬 Candy
4×
⚡ Event — may recur in Admin Abuse
📅 ~July 4–25, 2025 (Candy Aurora Event)
Introduced during the Candy Aurora event in early July 2025. Gives brainrots a candy-pink color and a 4x income multiplier. The first event mutation with a meaningfully strong multiplier (4x vs Bloodrot's 2x). Sammy has been known to activate it again during Admin Abuse events after its main window ended.
🌋 Lava
6×
⚡ Event — may recur in Admin Abuse
📅 July 25 – August 23, 2025 (Lava / Molten Event)
Released alongside the Admin Abuse War buildup in late July 2025. Brainrots affected by the Lava event glow with a reddish-orange color. At 6x multiplier it was the strongest mutation when released. The Lava event was one of the first to run regularly during Admin Abuse, making it more accessible than Bloodrot or Celestial. Still a popular mutation to hunt today.
🌌 Galaxy
7×
⚡ Event — may recur
📅 August 23 – September 27, 2025 (Space Event)
Launched on the day of the famous Admin Abuse War (August 23, 2025 — when the game peaked at 20M+ CCU). Galaxy brainrots turn purple and get a 7x multiplier. The Space Event activated every ~3 hours and lasted 15 minutes — the most time-limited event format up to that point, making Galaxy among the hardest to obtain from this era.
☯️ Yin Yang
7.5×
⚡ Event — may recur
📅 September 27 – November 15, 2025 (Yin Yang Event)
Replaced Galaxy as the seasonal mutation in late September 2025. Yin Yang gives brainrots a monochromatic black and white appearance — one of the most visually distinctive mutations in the game. At 7.5x it slightly edged out Galaxy. Only activated via the Yin Yang event — an admin-only event, not triggered by rituals.
☢️ Radioactive
8.5×
⚡ Event — also obtainable via Cyber Craft Machine
📅 November 15, 2025 – January 3, 2026 (Radioactive Event)
The first mutation with a special texture applied (rather than just a color change) — marking a new visual standard for mutations. Gives brainrots a neon green glow. At 8.5x it was the strongest mutation when released. Active during the holiday season alongside Christmas content. Also obtainable via the Cyber Craft Machine — the first mutation to have a craft route.
💀 Cursed
9×
⚡ Event — runs ~hourly while active
📅 January 3 – February 28, 2026 (Cursed Event)
Released right after New Year 2026. Gives a dark, cursed visual effect at 9x — the highest multiplier yet at the time. Notable trivia: when the Divine mutation event first launched (the next mutation), Sammy accidentally activated Cursed instead — giving the entire server the wrong mutation. Cursed runs approximately hourly while the event is active. Still one of the most visually popular mutations in the community.
✨ Divine
10×
⚡ Event — Feb 28, 2026 onwards
📅 February 28, 2026 — present (Divine Event)
The most recent always-recurring event mutation. Matches Rainbow at 10x — but technically superior because Divine brainrots have a chance to receive the exclusive Halo trait, which adds further income on top. The Divine index requires only 60% completion (vs 75% for others) to unlock its base skin and +0.5x global income bonus. Runs during the Divine event during Admin Abuse.
⚡ Cyber
11×
⚡ Event — Update 46/47 (April 2026+)
📅 Update 46/47, April 18, 2026 — present
The strongest mutation in the game. Added in Update 47 after a community proposal by Roblox YouTuber Rustynickle40, who suggested it during a stream. It replaced the originally planned Disco mutation (12x), which was marked as scrapped. Cyber features blue/electric visual effects and an 11x multiplier. Obtainable during the Cyber Event (active per-server rotation) with boosted chance during Admin Abuse. Also available via the Cyber Craft Machine.
🗓️ Pattern: How SAB Seasons Work
Looking at the history, a clear pattern emerges. Each new seasonal mutation runs for approximately 4–8 weeks before being replaced by the next one. The multipliers have progressively increased with each release — from 2x (Bloodrot) all the way to 11x (Cyber). The current "season" is Cyber + Divine, both active simultaneously. Every mutation from Radioactive onwards has a special texture applied (not just a color change).
Gold/Diamond → always (launch)
Bloodrot → Jun 2025
Candy → Jul 2025
Lava → Jul–Aug 2025
Galaxy → Aug–Sep 2025
Yin Yang → Sep–Nov 2025
Radioactive → Nov 2025–Jan 2026
Cursed → Jan–Feb 2026
Divine → Feb 2026+
Cyber → Apr 2026+
❓ FAQ
Can you still get Bloodrot or Celestial mutations?
Not through normal gameplay. They are legacy mutations only found on brainrots already owned by veteran players. Sammy occasionally activates legacy mutations during special Admin Abuse events, but it's not guaranteed.
What mutation came after Yin Yang?
Radioactive (8.5x), which was active from November 15, 2025 to January 3, 2026.
Is Disco mutation actually in the game?
No. Disco was planned as the mutation after Divine (with a rumored 12x multiplier) but Sammy scrapped it. The Fandom wiki marks it as scrapped. Cyber replaced it.
What is the newest mutation in Steal a Brainrot?
Cyber (11x), added in Update 47 on April 18, 2026 — currently the most powerful mutation in the game.
Can a brainrot have two mutations?
No — one mutation per brainrot. To stack more income on top of a mutation, focus on getting traits during Admin Abuse events. See the full traits guide.