The Aetherophasic Engine

We have detected massive subspace fluctuations in the … system emanating from a megastructure surrounding the star. While it superficially appears similar to a Dyson Sphere, this structure is apparently an "Aetherophasic Engine" - a vast mechanism designed to erase the barriers between our world and a psionic dimension known as the Shroud. Construction of this megastructure requires vast amounts of dark matter, which is why the … has been extracting it from stars with their Star-Eaters even though it violently destroys entire systems in the process. Once finished, the … intend to invade and claim the energies of the Shroud for themselves. Not only would this effectively give them the ability to shape reality into an image of their own choosing, but the resulting energy backlash would also destroy much of the galaxy.

The command below will trigger the "The Aetherophasic Engine" event in Stellaris:

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

• They must be stopped!

Stellaris events fire in chains — one event leads to the next. Here is how The Aetherophasic Engine (crisis.6015) connects.