The Summer Fuse Machine is the biggest seasonal addition to Steal a Brainrot since the original Fuse Machine launched, and it does not disappoint. Released in Update 52, it brings 16 Brainrots to chase, a carry-back mechanic that keeps every fuse tense, and Dragon Aquanini sitting at the top as the rarest pull in the pool. Here is everything you need to know to get the most out of it.
How does the Summer Fuse Machine work?
The machine sits in the middle of the map, right next to the Shop, so it is hard to miss. Walk up to it, place four Brainrots inside, then press E to open the menu. Before you commit, the machine shows you the potential combination you are rolling for. If the result looks good, hit the Fuse button and let the timer run.
Fuse timers scale with the rarity of the Brainrot you end up receiving:
- Epic rarity or lower: 15 minutes
- Brainrot God rarity or lower: 30 minutes
- Secret or OG rarity: 90 minutes
The finished Brainrot does not teleport to your base automatically. You have to carry it back yourself, which means other players can steal it from you mid-trip. Set up traps along your return route before the timer expires, not after.
Fuse Machine map location
What Brainrots can you get from the Summer Fuse Machine?
The pool holds 16 Brainrots total. One thing that makes this seasonal machine different from its predecessors: every Common through Legendary Brainrot carries over from the original Fuse Machine. That makes it the first seasonal variant to reuse characters from a previous version. The genuinely new content starts at Mythic and runs all the way up to Secret.
Dragon Aquanini is the headline pull, sitting at the top of the Secret tier with an 8% chance when fusing four Strawberry Elephants with Fuse Luck active. At $375M/s income, it is in a different league from everything else in the pool.
All 16 Summer Fuse Brainrots
Which Brainrots are worth targeting?
Secret tier: the real endgame
The four Secret-tier Brainrots are what most experienced players are grinding toward. Capitano Gullini at 46% is actually the most likely non-Bombardiro Secret you will land when running four Strawberry Elephants with Fuse Luck, which makes it a solid target if you want a high-income unit without the brutal odds of Coco and Mango or Dragon Aquanini.
For players who want the absolute best, Dragon Aquanini at $375M/s is the clear answer. The 8% pull rate means you should expect to burn through multiple sets of Strawberry Elephants before seeing it. Stock up before you start.
Brainrot God tier: underrated income
Flippo Marino at $316K/s and Lemonita Splashita at $280K/s are both strong earners for players who are not yet ready to grind for Secrets. Fuse odds for the Brainrot God tier are not publicly documented, so treat these as bonus pulls rather than targets you can reliably plan around.
Dragon Aquanini fuse result
Tips for protecting your fuse reward
The carry-back mechanic is where most players lose their hard-earned pulls. A 90-minute fuse for a Secret Brainrot means you have plenty of time to prepare, so use it.
- Place traps along the path between the Fuse Machine and your base before the timer finishes
- Pay attention to where aggressive players are positioned when the fuse is close to completing
- If possible, coordinate with allies to escort your Brainrot back
- Consider timing your fuse to complete during lower-traffic periods
Do not wait until the fuse finishes to think about protection. By the time you pick up the Brainrot, other players may already be watching the machine.
For more strategies on protecting your collection and stealing from others, the complete guide to stealing all Brainrots covers the core mechanics in detail.
Trap placement for fuse protection
How does the Summer Fuse compare to previous machines?
The Summer Fuse is the sixth seasonal Fuse Machine in the game, following the OG Fuse, Witch Fuse, Santa's Fuse, Fake Fuse Machine, and Divine Fuse. What sets it apart is the decision to carry over the Common through Legendary pool from the original machine rather than replacing it entirely. That means players who already have lower-rarity Brainrots from the original machine are not starting from scratch.
The new content, everything from Mythic upward, is summer-exclusive and adds five genuinely new characters to the roster alongside Dragon Aquanini as the top-tier chase unit.
If you want to stay current on everything the game has added recently, check out the full Steal a Brainrot strategy guides collection for coverage of other updates and systems.
What is the best strategy for the Summer Fuse Machine?
After running through the numbers, the most efficient approach depends on where you are in the game:
- Early game: Target the Epic and Legendary Brainrots using the documented combos. Ti Ti Ti Sahur at 71% with the right inputs is one of the most reliable pulls in the machine.
- Mid game: Grind toward Strawberry Elephants and build up a stockpile before attempting Secret fuses. Running one Strawberry Elephant at a time is inefficient given the odds.
- Late game: Run four Strawberry Elephants with Fuse Luck active and accept that Dragon Aquanini will take multiple attempts. The 46% rate on Capitano Gullini means you will likely land several of those along the way, which is still a strong income unit.
The Summer Fuse also connects well with the broader progression systems added in recent updates. The Return Update guide breaks down the progression changes that affect how quickly you can build toward high-rarity fuse inputs.