SMT 3 Fusion Calculator
Optimize Your Demon Synthesis in Shin Megami Tensei III: Nocturne
Target Base Level
Floor((Level A + Level B) / 2) + 1. The game then searches for the next demon in the Night family with a base level equal to or higher than 12.
Fusion Level Projections
Common Race Combinations Reference
| Race A | Race B | Result Race | Nature |
|---|
SMT 3 Fusion Calculator: The Ultimate Guide
Mastering the Cathedral of Shadows is essential for survival in the Vortex World. This smt 3 fusion calculator is designed to help players of Shin Megami Tensei III: Nocturne predict demon fusion outcomes, estimate summoning costs, and plan their party composition effectively. Whether you are aiming for a high-level Fiend or simply filling out your Compendium, understanding the math behind the fusion is critical.
Table of Contents
What is the SMT 3 Fusion Calculator?
The smt 3 fusion calculator is a tool used to simulate the “Binary Fusion” mechanic in the game. In SMT 3, when two demons are fused, they create a third, distinct demon. unlike random generation, this process is deterministic, governed by strict mathematical rules and race combination tables.
This tool helps you determine exactly which race and level of demon you will obtain before you spend your hard-earned Macca or sacrifice your party members. It is widely used by speedrunners and completionists to optimize fusion chains for skills like Pierce or Focus.
SMT 3 Fusion Formula and Mathematical Explanation
The core mechanic of the smt 3 fusion calculator relies on two main calculations: Result Race and Result Level.
1. The Level Formula
The resulting demon’s target level is calculated using the average level of the parents:
Target Level = Floor( (Level A + Level B) / 2 ) + 1
Once the Target Level is found, the game looks at the Result Race list. It selects the demon with the lowest base level that is greater than or equal to the Target Level.
Variable Definitions
| Variable | Meaning | Typical Range |
|---|---|---|
| Level A / B | Current level of parent demons | 1 – 99 (255 with cheats) |
| Target Level | Minimum base level for result | 2 – 99 |
| Base Level | The default starting level of a demon | Fixed per Demon ID |
Practical Examples (Real-World Use Cases)
Example 1: Creating a Mid-Game Healer
Scenario: You want to fuse a level 18 High Pixie (Fairy) with a level 20 Angel (Divine).
- Input: Fairy (Lvl 18) + Divine (Lvl 20)
- Math: (18 + 20) / 2 = 19. Add 1 = 20.
- Race Logic: Fairy + Divine = Night.
- Result: The game looks for a “Night” demon with level ≥ 20. The Lilim is level 8, Fomor is 18, and the next is Succubus (37). Wait, standard fusion might yield Fomor if the math rounds differently, or if elemental modifications apply. In standard tables, this often results in a lower tier Night demon if no higher tier exists close to the target.
Example 2: High-Level End Game
Scenario: Fusing Shiva (Deity, 95) with Vishnu (Deity, 93).
- Input: Deity (95) + Deity (93)
- Math: (95 + 93) / 2 + 1 = 95.
- Same-Race Fusion: Usually results in an Elemental (Prime) of the corresponding affinity. Deity + Deity = Prime (specifically Erthys or similar depending on clan).
- Financial Implication: High-level fusions cost upwards of 100,000 Macca if summoning from the Compendium.
How to Use This SMT 3 Fusion Calculator
- Select Races: Choose the race of both parent demons from the dropdown menus.
- Enter Levels: Input the current level of both demons. Do not use their base level; use their current level.
- Check Kagutsuchi: If you are planning a Sacrificial Fusion, set the phase to “Full”.
- Review Results: The calculator will display the predicted Race and the Target Level.
- Analyze Cost: Use the Estimated Compendium Cost to ensure you have enough Macca.
Key Factors That Affect SMT 3 Fusion Results
While the basic formula is simple, several factors in the smt 3 fusion calculator logic can alter the outcome.
1. Kagutsuchi Phase
The phase of the moon (Silent to Full) affects fusion accidents. At Full Kagutsuchi, fusion accidents are more likely, which may result in a different demon than predicted (often a Slime or a precious Fool/Wilder).
2. Elementals (Primes)
Fusing two demons of the same race usually results in an Elemental (Flamies, Erthys, etc.). Fusing a demon with an Elemental will rank the demon Up or Down within its own family tree.
3. Cursed Fusion
If the protagonist is Cursed (Magatama status), the fusion table inverts. Light races may result in Dark races (e.g., Divine + Divine might result in a Vile or Haunt instead of an Elemental).
4. Deathstone Fusions (Fiends)
If you carry a Deathstone and fuse at specific Kagutsuchi phases, the result may be overridden to create a Fiend (like Matador or Daisoujou) regardless of the standard race result.
5. Compendium Cost & Inflation
The cost to summon demons for fusion scales exponentially with stats. High-stat demons with completed skill lists can cost 4x more than their base versions.
6. Exclusion Rules
Certain demons (Bosses, special evolutions) cannot be fused normally and require specific flagged events or combinations.
Frequently Asked Questions (FAQ)
Q1: Does the order of demons matter in the smt 3 fusion calculator?
No. Fusing Demon A + Demon B is mathematically identical to Fusing Demon B + Demon A.
Q2: Why did I get a Slime instead of the predicted demon?
You likely experienced a Fusion Accident. This happens most often during Full Kagutsuchi or if using foul items.
Q3: Can I fuse Mitamas with this calculator?
This tool calculates standard binary fusion. Mitama fusion adds stats/skills to a demon without changing its ID, so the race prediction does not apply.
Q4: How do I make a Fiend like Matador?
You need a Deathstone item. The calculator assumes standard fusion. For Fiends, the result is forced if the conditions (Phase/Item) are met.
Q5: Why is the Macca cost higher than calculated?
The calculator estimates cost based on base level. If your demon has high stats from incense or leveling, the Compendium cost will be significantly higher.
Q6: What is Sacrificial Fusion?
Available at Full Kagutsuchi, you select a 3rd demon to sacrifice. This adds Experience (XP) to the result, allowing it to start at a higher level than normal.
Q7: Does difficulty affect fusion?
No, Hard Mode increases prices and damage, but the fusion table logic remains the same.
Q8: Is this compatible with the HD Remaster?
Yes, the fusion logic in SMT III Nocturne HD Remaster is identical to the original PS2 Maniax release.
Related Tools and Internal Resources
Expand your MegaTen knowledge with these related calculators:
- SMT V Fusion Calculator – Updated tool for Shin Megami Tensei V.
- Persona 5 Royal Fusion Tool – Calculate fusions for Joker’s journey.
- Strange Journey Redux App Guide – Sub-app planning for SJR.
- Demon Compendium Cost Analysis – Deep dive into Macca farming.
- Kagutsuchi Phase Tracker – Time your fusions perfectly.
- Digital Devil Saga Mantra Grid – Skill planning for DDS.