SPOILERS AHEAD: Stellaris Multiplayer Stream

If you have watched the Stellaris Multiplayer Stream, you will have discovered that Sol has been discovered to be destroyed in a nuclear war. However, we see many human civilizations across the galaxy. I have a theory, and that is that this universe is millions of years into the future of the Blorg single player play-through.

After reaching Sol in the single player play-through, The Blorg decide to grant their benefactors and new friends the gift of space flight, and soon the Humans would conquer the galaxy with their friends the Blorg. However, disaster soon struck the galaxy. Another galaxy soon collided with the current galaxy, and as hyperlanes across the galaxy were destroyed and reformed, and the former spiral galaxy merged into a single globular elliptical galaxy, civilization went crazy and eventually a war torn Humanity ended up destroying itself and destroying their own home. Soon human civilization was sent back into the bronze ages and the galaxy went silent. The Blorg, now left without any friends, went mad and eventually civil war ravaged their lands. Experimental super-weapons were tested, as the Khersonia separatists attempt to crash St. Knatchbull and various other planets into Blorg. They failed, but not before destroying Blorg civilization to its very core.

This is why Sol is irradiated. This is why the Blorg System is radically different. This is why there are so many humans.

Millions of years later, the galaxy is still recovering. Blorg, hearing stories of the friends they once had amongst the stars soon once again venture out of their fungus caves and once again seek out their home in the stars. One name sticks out to these futuristic Cinematic Universe Blorg; the home of their former friends: Sol.