Unbreakable Resolve
Biological
LithoidInfernals Species PackUnbreakable Resolve is a biological species trait in Stellaris 4.5.2 that costs 2 trait points. It is for Biological and Lithoid species and can be picked when a species is created.
What Unbreakable Resolve does
Modifier lines by where they apply, as the game prints them; then the trait's own effect text.
No modifier lines in the files.
Every 100 
Pops on the planet with this trait add +0.2 
Stability (Max: +15)
- Does not include slaves or lower pop strata.
When modification offers it
species_potential_add and species_possible_add: when genetic or robotic modification shows and allows the trait (the wording is ours).
- Requires the Gene Tailoring Technology.
In the game
Bound by an intricate web of mirror neurons, these individuals possess an innate ability to synchronize their will. Duty is not a burden, but a shared purpose, and hardship is met with unwavering unity.
Unbreakable Resolve: questions
How many trait points does Unbreakable Resolve cost?
Unbreakable Resolve costs 2 trait points (common/traits, Stellaris 4.5.2).
Can I pick Unbreakable Resolve at species creation?
Yes, for Biological and Lithoid species.
What is the ID of Unbreakable Resolve?
trait_unbreakable_resolve
Source: common/traits/16_infernals_traits.txt, Stellaris Cygnus v4.5.2 (9776).