Beyond Horizon: First Contact

Horizon Zero Dawn/Mass Effect/Overwatch crossover. The world ended and there was nothing we could do to stop it. Not by the Omnics we fought against, but by the very weapon we made to combat them. It was only the vision of Dr. Sobeck that humanity now has a chance to rebuild out of the ashes of our extinction. But now we're not alone, on our planet or the galaxy at large.