Type I Atmosphere
Type I atmospheres have appropriate levels of oxygen and hydrogen to be breathable by the majority of species in the galaxy. Some contaminants or other trace gases may still be present but not so as to cause significant problems. Worlds with these types of atmospheres always have indigenous life: plant life or some analogy that frees oxygen must be present on all worlds with a Type I atmosphere as all oxygen in the atmosphere would have been bound to other elements within a matter of months without such life to free it up. Since the air of a Type I atmosphere is safely breathable, no breathing equipment is necessary.
Terrestrial planets and moons in goldilocks orbit with Natural Life can have a Type I Atmosphere.
Advantages
- A world with a Type I atmosphere gains a bonus of +40 to all production.
- A world with a Type I atmosphere and an ocean gains an additional bonus of +10 to all production.
- A world with a Type I atmosphere may specialise zones.
- +1%
Population growth.
Cost
The cost of a Type I Atmosphere depends on the size of the world:
| World Type | Biomass cost for Type I Atmosphere |
|---|---|
| Small moon | 4  |
| Medium moon | 12 |
| Large moon, small planet | 28 |
| Medium planet | 76 |
| Large planet | 148 |
Additionally, a world must have Natural Life to be able to have a Type I atmosphere.
