Robust

Biological species trait

4 points

Biological

LithoidNot at creation

Robust is a biological species trait in Stellaris 4.5.2 that costs 4 trait points (base cost). It is for Biological and Lithoid species, added later, not at species creation. It gives +30% Habitability, +5% Job Efficiency and +50 Leader Lifespan. Opposite of Nonadaptive, Adaptive, Extremely Adaptive, Adaptive and 1 more.

Cost: 4 (base)
At species creation: no
Random species: no
Species: Biological, Lithoid
ID: trait_robust

What Robust does

Modifier lines by where they apply, as the game prints them; then the trait's own effect text.

Species

+30%Habitability
+5%Job Efficiency
+50Leader Lifespan

Opposite traits

A species cannot have this trait together with any of these.

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).

Can do advanced gene modding
- from
  - When Any of (Without: biogenesis; Tradition: Genetic Traditions)
    - Tradition: Allelic Expression
  - Otherwise
    - Any of

In the game

Bio-optimized organs with redundant functions have made this species extraordinarily resistant to environmental hazards and disease.

Robust: questions

How many trait points does Robust cost?

Robust costs 4 trait points (common/traits, Stellaris 4.5.2).

What traits are opposite to Robust?

Nonadaptive, Adaptive, Extremely Adaptive, Adaptive and Shelled: a species cannot have both.

Can I pick Robust at species creation?

No — it is not offered when a species is created (initial = no); it comes from genetic or robotic modification, events or other effects.

What is the ID of Robust?

trait_robust

Source: common/traits/09_ascension_traits.txt, Stellaris Cygnus v4.5.2 (9776).