Avorion: Into The Rift

Into The Rift is the second expansion of the space sandbox Avorion.

In this hardcore add-on you'll explore the mysterious and dangerous Rift dimension. Thanks to new technology, it is now possible to send smaller amounts of mass (i.e. a few ships) into the Rifts. Scientists are now intensively researching these Rifts - and they need your help. Travel into the Rifts and uncover their secrets. Face their dangers, complete research expeditions, and earn powerful new rewards.

About the base game:

Several hundred years ago, a cataclysmic catastrophe nearly ripped your galaxy apart - an insurmountable ring of torn hyperspace fabric appeared in the center of the galaxy, which normal hyperspace engines can’t overcome.

Since this event nobody has managed to get near the central regions of the galaxy. All you know is that this event also spawned multiple insurmountable hyperspace rifts throughout the entire galaxy, and that a strange race of aliens, the Xsotan, has appeared in the center. It looks like these aliens have found a way to surpass the torn hyperspace fabric, but so far nobody has managed to establish contact with them.