Fuse Machine & Fusion System in Steal a Brainrot
Master the art of fusion and unlock new brainrot characters. Learn how to use the Fuse Machine to combine brainrots and discover rare combinations.
Fuse Machine Overview (Replaced by Craft Machine)
Fuse Machine Location (Replaced by Craft Machine)
The Fuse Machine is located next to the Coins Shop - every player can access and use the Fuse Machine.
Brainrot Collection
Players can collect brainrots from their base or "steal" them from other players and bring them to the Fuse Machine for fusion.
Fuse Machine Interface (Replaced by Craft Machine)
The Fuse Machine was positioned next to the Coins Shop, where all players could access this shared fusion machine. Below you can see both the machine's location and its interactive interface for combining brainrots.
Fuse Machine location next to the Coins Shop
Fuse Machine interactive interface for combining brainrots
Fusion Mechanics & Requirements
Capacity & Pool
• Maximum 4 brainrots per fusion
• Fusion consumes all input brainrots
• Choose carefully for best results
• Different combinations yield different outcomes - View all fusion brainrots
• Strategic mixing for optimal results
Cost
• $500 base cost
• Varies based on value
• Cost only appears after all 4 brainrots placed
• Higher rarity brainrots increase cost
• Note: Fusion cost may be related to the cost of participating brainrots (unverified)
Time
• 15 minutes to 1h 30min fusion time range
• Time based on highest rarity used
• REVEAL NOW option available for 299 R$
• Higher rarity = longer fusion time
Fusion Probabilities
How Fusion Rarity Works
Same Rarity Strategy
The key to obtaining specific fusion brainrots is using 4 brainrots of the same rarity as your target. This provides the foundation for achieving the desired fusion outcome.
Value Optimization
Once you have 4 brainrots of the same rarity, adjust their individual values to optimize probabilities. Higher value brainrots within the same rarity generally improve chances for the 2nd and 3rd fusion outcomes.
Note: Value adjustments may be related to fusion cost (unverified), but generally higher values within the same rarity improve probability distribution.
Important Fusion Rarity Notes
Secret Rarity
⚠️ Probability Tip:
Use the live probability preview to confirm chances. If a Secret result is hidden, adjust one slot at a time until it appears, then nudge values to improve its percentage.
Common Rarity
🎯 Pure Strategy:
Use 4 Common brainrots for highest Common probability. Adding any other rarity brainrot may skip Common fusion results.
General Rule
📊 Same Rarity Strategy:
Using 4 brainrots of the same rarity is the best starting point for any target rarity. Then iteratively adjust one slot at a time while watching the on-screen probability preview to push the desired result.
Updated Guidance
- Use the live probability preview to fine-tune your inputs.
- Prefer adding one tier higher brainrot over much lower or several tiers higher.
- Extreme mixes can drop specific outcomes to 0% and hide them from the interface.
- This approach applies to any target rarity (including Mythic), combined with the same-rarity starting rule above.
Premium Fusion Options
REVEAL NOW Feature
Skip the waiting time and instantly reveal your fusion result for 299 Robux (R$).
Standard Fusion
Free option - wait for the natural fusion time to complete.
Fusion Tips & Strategy
Before Fusion
- • Ensure you have enough money for the fusion cost
- • Choose brainrots that complement each other
- • Consider the rarity of input brainrots
- • Consider the rarity combinations for optimal results
- • Plan your fusion strategy in advance
During Fusion
- • Wait for the fusion time to complete (highest: 1h 30min)
- • Use REVEAL NOW for 299 R$ to skip waiting time
- • Don't interrupt the fusion process
- • Keep track of your fusion attempts
- • Be patient for the best results
Important Notes
- • Fusion Time: Based on highest rarity used, max 1h 30min
- • Fusion Cost: Varies based on brainrot values
- • Probability Display: Shows individual probability for each fusion brainrot outcome
- • Cost Display: Appears after all 4 brainrots placed
- • Fusion Strategy: Use 4 brainrots of the same rarity, then adjust individual values to optimize probabilities