The Fuse Machine turns three similar treasures and a Cash fee into one stronger copy of that same treasure. It can also roll a mutation. It does not invent a new item name.
Where it is
Stand in the safe zone next to the Sell Shop. On PC press E. Phone and console use the on-screen interact button. The machine works at night. You do not collect the result from a tray. It is added to your hotbar or inventory.
Steps
- Open the fusion menu.
- Press + and choose the first treasure.
- Add two more of the same type. Three Ancient Painted Vases are a documented example. Three random legendaries from different sets are not.
- When all three slots are valid, press the Cash button.
- Place the result if its income beats your weakest pad.
The 28 Sep 2026 fuse guide says the returned vase can be Mutated, Alien, Molten, or Electrified. The same guide calls Alien the rarest roll at about 1 percent. That percentage is a published report, not a developer odds table. No percentages were given for the other three.
What the fee does
The Cash cost depends on the items you submit. Lower rarities were described as cheaper. Legendary, Cosmic, and Eternal inputs were described as costing millions. There is no public per-item price list, so the number on the Cash button is the price.
A fused copy was reported to sell for more and to generate more cash than an unmutated copy of the same treasure. Exact multipliers were not printed. Compare the new $/s label with the pad you would replace.
When to fuse
Fuse when most of these are true:
- You already clear the area you are farming.
- The next treadmill or trail purchase is not the thing keeping you out of that area.
- You have three of the same treasure, and at least one was going to be sold as overflow.
- You can pay the fee without zeroing the Speed fund.
Wait if you are still walking the early streets, if the triple is your only progress on the Item Index and you want the copies visible, or if a live admin event is about to drop more cash. Practice the menu on cheap commons. Hunt the rare mutation with duplicates of a treasure that already earns well.
Use the copies calculator if you lose count. Use the chance helper only after you replace the default 1 percent with the odds you intend to test.
Do not confuse this machine with fuse stations in other steal games. Those use different slot counts and different outputs.