Shin Megami Tensei (SMT) Fusion Calculator
A tool for determining the result of two-demon fusion in SMT games.
Choose the first demon for the fusion.
Choose the second demon for the fusion.
What is a Shin Megami Tensei Fusion Calculator?
A Shin Megami Tensei Fusion Calculator is an essential tool for players of the SMT series. Fusion is a core mechanic where you combine two or more demons to create a new, often more powerful, one. This process is not random; it follows a specific set of rules based on the races and base levels of the parent demons. A calculator automates this complex lookup process, saving players hours of trial and error. Instead of manually cross-referencing charts, players can simply select the demons they have and instantly see the outcome, allowing for strategic team building and compendium completion.
This tool is for anyone from a series newcomer trying to understand the systems to a veteran player planning out a perfect demon with a specific set of inherited skills. Common misunderstandings often involve thinking any two demons can be fused, or that the result will always be higher level. As this calculator shows, the results are determined by a fixed formula. To learn more about SMT fundamentals, you might want to read a {related_keywords} guide.
The Shin Megami Tensei Fusion Formula
Standard two-demon fusion in most SMT games follows a two-step formula. The “calculation” is not mathematical in a traditional sense but is instead based on a lookup table and an averaging rule.
- Race Calculation: The races of the two parent demons are cross-referenced on a master “Fusion Chart”. The intersection of Race A and Race B on this chart determines the race of the resulting demon. For example,
Fairy + Beast = Wilder. - Level Calculation: The base levels of the two parent demons are averaged, and then a small constant is typically added. The formula is:
Target Level = floor( (Demon A Base Level + Demon B Base Level) / 2 ) + 1
The game then looks at all demons within the calculated Result Race and picks the one with the lowest base level that is greater than or equal to the Target Level.
Variables Table
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Demon A/B Race | The family or tribe of the parent demon. | Race (e.g., Fairy, Dragon, Vile) | Varies by game |
| Demon A/B Base Level | The innate starting level of the demon. | Level | 1 – 99 |
| Result Race | The race of the demon created by the fusion. | Race | Varies by game |
| Target Level | The calculated average level used to find the result. | Level | 2 – 100 |
Understanding these variables is the first step toward mastering the {related_keywords} system.
Practical Examples
Example 1: Fusing Pixie and Kabuso
- Input 1: Fairy Pixie (Base Level: 2)
- Input 2: Beast Kabuso (Base Level: 6)
- Calculation:
- Race: Fairy + Beast = Wilder (from chart)
- Target Level: floor((2 + 6) / 2) + 1 = 5
- Result: The calculator searches for the lowest-level Wilder demon with a base level >= 5. In this case, it’s Wilder Garm (Base Level: 14).
Example 2: Fusing Angel and Jack Frost
- Input 1: Divine Angel (Base Level: 10)
- Input 2: Fairy Jack Frost (Base Level: 11)
- Calculation:
- Race: Divine + Fairy = Yoma (from chart)
- Target Level: floor((10 + 11) / 2) + 1 = 11
- Result: The calculator finds the lowest-level Yoma demon with a base level >= 11, which is Yoma Apsaras (Base Level: 16).
How to Use This Shin Megami Tensei Fusion Calculator
Using this calculator is a simple, three-step process designed for efficiency.
| Step | Action | Description |
|---|---|---|
| 1 | Select Demon 1 | Use the first dropdown menu to choose the first demon you want to fuse. The list is populated with a variety of demons from the game. |
| 2 | Select Demon 2 | Use the second dropdown menu to choose the second demon. The order doesn’t matter for the final result. |
| 3 | View Results | The result of the fusion is automatically calculated and displayed. You will see the resulting demon’s name, race, and base level, along with a chart comparing the levels. |
For more advanced strategies, you might explore a guide on {related_keywords}.
Key Factors That Affect Shin Megami Tensei Fusion
While the basic formula is straightforward, several other factors can influence fusion outcomes in the SMT series.
- Game-Specific Fusion Charts: Each game (SMT III, SMT V, etc.) has a slightly different fusion chart. A fusion that works in one game might produce a different result in another.
- Special Fusions: Certain powerful or unique demons can only be created through a specific, fixed combination of two, three, or even four demons, ignoring the standard formulas.
- Same-Race Fusion: Fusing two demons of the same race typically does not produce another demon of that race. Instead, it results in an “Element” demon, which can then be used in other fusions to rank a demon up or down within its own race.
- Fusion Accidents: There is a small, random chance that any given fusion will “fail” and produce an unexpected, often rare, demon. The likelihood can be affected by the moon phase or other in-game factors.
- Player Level: You cannot fuse a demon whose base level is higher than your protagonist’s current level. This acts as a natural progression gate.
- Unique Skills: Some demons have signature skills that cannot be passed on through fusion (e.g., Alice’s “Die For Me!”). Planning skill inheritance requires knowing which skills are transferable.
Frequently Asked Questions (FAQ)
1. What happens if I fuse two demons of the same race?
Fusing two demons of the same race typically results in a special “Element” demon. These are not used for combat but are ingredients in “elemental fusion” to move up or down the ranks of a specific race. This is a great topic to read more about in a {related_keywords} guide.
2. Why is the result of my fusion a lower level than the parents?
This is a common and intended outcome. The resulting demon is based on the average of the parents’ base levels, not their current trained levels. The formula then finds the next available demon in the target race, which could have a base level lower than one or both parents if they were leveled up significantly.
3. What is a “fusion accident”?
A fusion accident is a random event where the fusion process fails and produces a random demon instead of the expected one. The chances are low but can be influenced by in-game events like the moon phase.
4. Does this calculator work for the Persona series?
No. While the Persona series is a spinoff of SMT and uses a similar fusion concept, its fusion rules, Arcanas (equivalent to races), and fusion charts are completely different. This tool is specifically for mainline Shin Megami Tensei games.
5. What are Special Fusions?
Special fusions are fixed recipes for creating specific, often very powerful, demons. Unlike normal fusions which are flexible, a special fusion requires an exact set of ingredient demons. This calculator focuses on normal fusions.
6. Why can’t I fuse a specific demon?
The most common reason is that your player character’s level is too low. You cannot create a demon whose base level is higher than your own. Some demons may also be locked behind story progression or side quests.
7. What are “Reverse Fusions”?
Reverse fusion is a quality-of-life feature in modern SMT games that shows you all possible demons you can create from your currently held stock of demons. This calculator works like a “forward fusion” calculator, where you select the ingredients to see the result. To understand this better, a {related_keywords} article might be useful.
8. How is the resulting demon determined?
It’s a two-step process: the race of the parents determines the result’s race via a lookup chart, and the average of the parents’ base levels determines which demon within that race is created.
Related Tools and Internal Resources
If you found this shin megami tensei fusion calculator helpful, you might be interested in our other in-depth strategy guides and tools. Building a powerful team requires more than just fusion.
- Comprehensive Skill Database: A searchable list of all skills, what they do, and which demons learn them.
- SMT V Boss Strategy Guide: Detailed guides on how to defeat the toughest bosses in Shin Megami Tensei V.
- Demon Negotiation Guide: Tips and tricks for successfully recruiting demons in battle.
- Macca Farming Techniques: The best ways to earn Macca (in-game currency) to fund your fusion and compendium costs.