The Gray Tempest

Scientists from the … managed to restore functionality to the L-Gate within their territory, beating us to it. Unfortunately, this seems to have triggered an invasion of our galaxy by the cluster's inhabitants - aggressive nanomachines that attack everything in sight! The … scientists managed to shut down their gate before the invasion force arrived, but this only diverted them to the other L-Gates of the galaxy, that are now fully active! All attempts to communicate with these invading nanites have failed. In the wake of their passage through the L-Gates, we have detected a repeating wide-band subspace transmission emanating from the L-Cluster.

The command below will trigger the "The Gray Tempest" event in Stellaris:

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

• Put the message on screen.

Stellaris events fire in chains — one event leads to the next. Here is how The Gray Tempest (graygoo.11) connects.