Discover powerful demon combinations with our interactive fusion calculator. Find the perfect fusion recipes for your playthrough.
Fusion Parameters
Fusion Result
Select Demons to Fuse
Stats Comparison
| Stat | Demon 1 | Result | Demon 2 |
|---|---|---|---|
| HP | – | – | – |
| MP | – | – | – |
| Strength | – | – | – |
| Dexterity | – | – | – |
| Magic | – | – | – |
Skill Inheritance
Advanced Fusion Options
Popular Fusions
Angel + Archangel
→ Principality
Jack Frost + Pyro Jack
→ King Frost
Pixie + Angel
→ Asparas
Naga + Nozuchi
→ Mizuchi
SMT IV Apocalypse Fusion Calculator
Complete Demon Fusion Guide
Master the arcane art of demon fusion in Shin Megami Tensei IV: Apocalypse. Create powerful allies and optimize your party with our comprehensive fusion calculator.
Fusion Mechanics Explained
Basic Fusion Principles
Demon fusion follows specific mathematical formulas that determine the level, stats, and skills of the resulting demon. Understanding these principles is essential for effective fusion planning.
Key Fusion Formulas
Basic two-demon fusion level calculation
Stat inheritance formula with race modifier (R)
Affinity (A) and compatibility (C) factors
Advanced Fusion Types
SMT IV: Apocalypse features several specialized fusion types beyond the standard two-demon combination.
Special Fusion Mechanics
Multi-Fusion
Combine three or more demons for unique results with modified inheritance rules.
Sacrificial Fusion
Use special items or sacrifice demons for powerful but limited-time fusions.
Reverse Fusion
Deconstruct high-level demons into component parts with skill preservation.
Demon Race Compatibility
Different demon races have varying compatibility that affects fusion outcomes and skill inheritance rates.
High Compatibility
Fairy + Divine
Medium Compatibility
Beast + Wilder
Low Compatibility
Fallen + Herald
No Compatibility
Certain unique demons
Special Demon Fusions
| Special Demon | Required Components | Level | Unique Skills | Fusion Type |
|---|---|---|---|---|
| Shiva | Barong + Rangda | 82 | Pralaya, Megidolaon | Special Fusion |
| Alice | Nebiros + Belial | 65 | Die for Me!, Mamudoon | Special Fusion |
| Yoshitsune | Futsunushi + 5 other swords | 75 | Hassou Tobi, Charge | Multi-Fusion |
| Metatron | 9 Virtue demons | 89 | Thunder Reign, Mahamaon | Sacrificial Fusion |
| Masakado | Yoshitsune + 4 heavenly kings | 95 | Myriad Arrows, Titanomachia | Ultimate Fusion |
Special Fusion Tips
Many special fusions require specific quest completion or story progression. Always check requirements before planning your fusion chain. Some special demons can only be fused during specific weather conditions or moon phases.
Frequently Asked Questions
Several factors can alter fusion outcomes: demon alignment (Law/Neutral/Chaos), full moon effects, special fusion conditions, and DLC content. The calculator accounts for these variables when configured correctly with your current game state.
To maximize skill inheritance: 1) Use demons with high affinity for desired skills, 2) Fuse during a full moon for increased inheritance rates, 3) Utilize skill points from leveling up before fusing, 4) Consider using Mitama demons to boost specific affinities.
Plan backward from your target demon. Identify the component demons needed, then work backward to find the simplest fusion chain. Use the calculator’s chain planning feature to optimize the process and minimize resource expenditure.
While there’s no direct “unfuse” function, you can use reverse fusion (available after completing certain quests) to break down high-level demons into components. However, this process consumes resources and may not return all original skills.
Demon alignment (Law/Neutral/Chaos) can change fusion outcomes, especially for special demons. Law-aligned components may produce different results than Chaos-aligned ones. The calculator includes alignment toggles to preview these variations.
Yes! Some notable powerful combinations include: Shiva (Barong + Rangda) for end-game content, Yoshitsune (multi-fusion) for physical attacks, and Alice (Nebiros + Belial) for instant-kill strategies. The calculator highlights these premium fusions.
Master the Art of Demon Fusion
With the SMT IV Apocalypse Fusion Calculator, you have the ultimate tool to create powerful demon allies and conquer the post-apocalyptic world of Tokyo.