Ecological Collapse and Biosphere Collapse happen when your stats change to the point that plant life and animal life respectively are no longer possible on your world.

Collapse[edit | edit source]

If your world was able to sustain population on the surface, but your stats have changed so that it no longer is, you will receive this notification:

Ecological Collapse[edit | edit source]

[World] is in crisis. As conditions continue to deteriorate, animals and humans alike have become unable to survive on the surface. The survivors huddle in sealed habitations, but if action isn't taken quickly, the next to go will be the remaining plantlife all across the planet. By that point, [World] will be a dead world.

Act quickly.

All population in excess of your Hab facilities immediately disappears.

If your world was able to support plant life, but is no longer able to do so due to stat changes, you will receive this notification:

Biosphere Collapse[edit | edit source]

[World] is in crisis. As the surface conditions of [World] spin out of control, the planet has been rendered unable to support plant life. Massive die-offs have already begun, and only those plants, animals, and humans already safe in sealed habitations are safe.

[World] has become a lifeless rock.

All biomass will instantly disappear if you have the biomass function enabled. If you have the biospheres function enabled, all species will go extinct. You will get separate extinction notifications for each species.

This is also called Biosphere Collapse if you have the biomass function enabled.

New Life[edit | edit source]

If you change your stats back so your world becomes able to sustain plant life again, you will receive this notification:

Life Takes Root[edit | edit source]

The first plants have begun to take root on the surface of [World]! Continue your terraforming efforts, and before long we'll be able to introduce animal life, including humans. For now, humanity watches breathlessly as green begins to spread across a formerly dead world.

Biomass can now start growing. If this is the first time this world has reached plant life habitability, you will receive 10 GP.

If you change your stats back to that your world becomes able to sustain animal life again, you will receive this notification:

A New World[edit | edit source]

It's been a long time coming, but [World] is finally capable of supporting human life! As your settlers take their first unaided breaths on the surface of [World], a new era of civilization begins.

All that remains is to forge your people into a thriving community, and declare yourself an independent world.

Population can now grow beyond your Hab facility limits. If this is the first time this world has reached Habitable status, you will receive 20 GP

How to Prevent Collapse[edit | edit source]

To prevent it, you need to stabilize your planet's stats, which means that growth is +0 per minute on all stats. See this page for tips on how to do that:

Main article: Building Effects

Additionally, you will need the Sky Farm satetllite, otherwise your population will grow so much that they eat all biomass, and when biomass dwindles to the point that your world is no longer habitable, all of that population will instantly die off.

Stabilizing a world on biomass function is doable, but this is very hard to do on biospheres function. This is because with the Biospheres function enabled, oxygen growth can be so slow that it only shows when you have the game calculate change per hour, and doesn't show up when you calculate change per minute. This means leaving the world for a long time will probably lead to collapse.

To prevent collapse on biosphere function, you will probably have to pause the game. Alternatively, you will just have to visit your world often.

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