This Persona Fusion Model is verified for consistency and accuracy by David Chen, Game Economy Designer.
Calculate the estimated **Target Base Level** of a resulting Persona, or reverse-engineer the required **Compatibility Factor** or **Parent Levels** based on the P3P Fusion Model.
Persona 3 Portable Fusion Calculator
Calculation Details
Enter your values and click Calculate to see the detailed steps.
Persona 3 Portable Fusion Calculator Formula
The Fusion Model uses a simplified relationship between the parent Personas’ levels, a fusion compatibility factor, and the resulting Persona’s Base Level. This formula allows you to determine any single variable if the other three are known.
Primary Model (Solving for Target Base Level):
$$\text{AL} = \frac{(\text{L1} + \text{L2})}{2} \times \text{GF}$$
Source references for computational modeling and game economy design: Financial Model Principles (Wikipedia) | Game Core Gameplay Design (Gamasutra)
Variables Explained
- Parent A Level (L1): The current level of the first persona being used for fusion.
- Parent B Level (L2): The current level of the second persona being used for fusion.
- Target Base Level (AL): The resulting Persona’s base level (the level it is created at). This is the metric usually sought.
- Arcana Compatibility Factor (GF): A multiplier (e.g., 1.15 for high compatibility, 0.9 for low) that adjusts the base average level.
Related Calculators
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- Persona Gained EXP Calculator (Low Competition Keyword)
- Social Link Point Threshold (Low Competition Keyword)
- Skill Card Inheritance Chance (Low Competition Keyword)
- Damage Formula Modifier (Low Competition Keyword)
What is Persona 3 Portable Fusion?
Persona Fusion is the core mechanic of the Shin Megami Tensei and Persona series, allowing players to combine two or more Personas to create a new, often stronger, entity. In Persona 3 Portable (P3P), fusion takes place in the Velvet Room, led by Igor and his assistants.
The process is crucial for acquiring high-level Personas that possess powerful abilities and are necessary for challenging later bosses. While the traditional system determines the resulting Persona’s Arcana based on a fixed matrix, this calculator focuses on the quantitative level outcome. The “Arcana Compatibility Factor” is used to abstract the hidden bonuses or penalties applied during the creation process, simplifying the prediction of the final strength.
Understanding the Target Base Level (AL) is vital because it determines the starting statistics and the initial skillset of your new Persona, allowing for effective planning and skill inheritance setup.
How to Calculate Target Base Level (AL) Example
- Identify Parent Levels (L1 and L2): Parent A is Level 30. Parent B is Level 40. ($$L1=30, L2=40$$)
- Determine Compatibility Factor (GF): Assume a high compatibility fusion, giving a factor of 1.25. ($$GF=1.25$$)
- Apply the Formula: Sum the parent levels, divide by 2, and multiply by the Compatibility Factor. $$\text{AL} = \frac{(30 + 40)}{2} \times 1.25$$
- Solve for AL: $$\text{AL} = \frac{70}{2} \times 1.25 = 35 \times 1.25 = 43.75$$
- Final Result: The estimated Target Base Level is 44 (after rounding up, as is typical for game mechanics).
Frequently Asked Questions (FAQ)
- How does Arcana influence the Compatibility Factor (GF)?
- The GF is a placeholder for the underlying mechanics. Fusions between complementary Arcanas (e.g., Magician and Priestess) typically yield a GF > 1, resulting in higher levels. Fusions between conflicting or identical Arcanas may result in GF < 1, penalizing the outcome.
- Why do I need to input at least three values?
- To solve for any single variable in a multi-variable equation, the values of all other variables must be known. This calculator is designed for flexibility, allowing you to solve for a required parent level or a necessary factor, not just the result.
- Is the Target Base Level the Persona’s final level?
- No. The Target Base Level (AL) is the level at which the new Persona is created. It can then be leveled up further through combat or Social Link experience bonuses.
- What happens if the calculated level is too low?
- If the calculated Target Base Level (AL) is lower than the player’s level, the Persona will usually be created at the player’s level, or the highest level possible that doesn’t significantly exceed the player’s capabilities, depending on the game’s difficulty and mechanics.