Gamma-Ray Burst

24,000 years ago … had the misfortune of being directly in the path of a long gamma-ray burst from a collapsing star within our galaxy. The … was washed with lethal radiation, which not only produced acute radiation poisoning in most life forms on the side of … that happened to be facing the burst, but also depleted much of the ozone layer. This extinction event killed off an estimated 86% of all biota, including an early Bronze Age civilization whose ruins can still be found in some parts of the northern hemisphere. The biosphere is only now showing signs of recovery.

The command below will trigger the "Gamma-Ray Burst" event in Stellaris:

When this event fires, you can choose between the following option:

• Fascinating.