Website and data research by 101Leafy.

Pick two demons to see what Dyad Fusion makes, or pick one demon to see every pair that makes it. 101Leafy researched the game's fusion rules, and this calculator gives the same result as the game for all 30348 Dyad Fusion pairs.

Dyad Fusion

Reverse Fusion

Pick a demon to list every pair that Dyad Fusion turns into it. Click Total level to flip the order.

Special Fusion

Special Fusion always uses the same two to four demons, and demons in the Demon Compendium can be used too. Pick demons to find every recipe that uses them.

Fusion Rules

1. The races of the two demons decide the race of the new demon, by the race chart below. Some pairs of races cannot be fused.
2. Half the total level of both demons, rounded up, plus 1 is the target level. The new demon is the lowest of its race at or above that level, or the highest of its race when none reaches it.
3. Dyad Fusion never makes a demon that has a Special Fusion recipe, and a pair that is itself a two-demon recipe gives nothing in Dyad Fusion.
4. Two demons of the same race make an Element, which one depends on the race. Races without an Element cannot be fused with each other, and two Elements cannot be fused together.
5. An Element and a demon make the demon 1 rank up or 1 rank down in the same race. Going up from the highest demon of a race gives the lowest one, and going down from the lowest gives nothing. A Special Fusion demon moves to the nearest demon above or below its level.
6. Mitamas have no Dyad Fusion results.
7. A demon above the Nahobino's level cannot be made.
8. Some demons cannot be fused until the story reaches them or a subquest is cleared, Fionn mac Cumhaill among them. Hare of Inaba, Kinmamon, and Amabie need their DLC. The calculator shows every demon as unlocked.
9. Fusion accidents rarely make a different demon than planned, more often around the full moon. The calculator does not predict them.

Race Chart

The row race plus the column race gives the race of the new demon. A dash means the two races cannot be fused. Mitamas are left out because they give no Dyad Fusion result.

Creating Elements through Fusion

Two demons of the same race make one of the four Elements. Races not listed make none.

Fusion Using Elements

Each Element moves a demon 1 rank up or 1 rank down within its race, depending on the race. A dash means the two cannot be fused.