illuvium

Updated

Apr 14, 2025

TPI System Update

TPI System Update

Based on community sentiment and council feedback, we’re making some adjustments to the TPI number. This should help simplify things for everyone.


What's Changing

We're updating how the Trait Purity Indicator (TPI) works to match player expectations better:

  • Currently: TPI calculates based on 16 values. This was set up 3 years ago before any games were finished, giving us the flexibility to treat each game uniquely.

  • New System: There will only ever be 6 traits (to match Arena) and any new games will use the same system. Additionally, the traits in those games will exactly match the 0-5 system used in Arena.


Why We're Making This Change

Many have pointed out that units with perfect Arena stats still show less than 100% TPI, or that sometimes TPI seems high compared to the stats.

Since Arena is our main current game and the target of most people’s expectations, we're adjusting the TPI to reflect that.


What This Means

  • Your units' actual in-game stats and performance won't change at all

  • Most unit’s TPI will be slightly different, and perfect units will always be 100%, while lowest rolls will always be 0%.

  • Since we are only calculating off 6 traits we can adjust the calculation slightly, making it easier for you to understand.


Looking Ahead

While this does limit flexibility for future games, we believe making the community happy and matching their expectations is our most important goal.

We appreciate your feedback whichthat helped drive this change. Our goal is to make the game more intuitive while maintaining the depth you enjoy.

Simplified Example

Current System:

- Unit A has perfect stats for all 6 Arena traits but average values in the unused traits

- Current TPI: 94% (despite being perfect for Arena)

- Unit B has near-perfect Arena stats and high values in the unused traits

- Current TPI: 96% (appears better than Unit A despite being worse in Arena)


New System Example:

- Unit A with perfect Arena stats

- New TPI: 100% (accurately shows this unit is perfect for Arena, and will be perfect for all other games)

- Unit B with near-perfect Arena stats (one trait at 4/5 instead of 5/5)

- New TPI: 98% (accurately shows this unit is very good but not perfect)


Final Note

We understand that some of these decisions may seem straightforward at first glance, but the reality is that creating an interconnected universe of games involves countless intricate choices. What may appear simple on the surface often has hidden complexities. When you factor in a four-year development cycle, with the game already live and permanently on-chain, we hope you can appreciate the immense challenge of building systems that cater to every player's preference.

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Aaron Warwick

Co-Founder

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