Paradox's space 4X strategy game Stellaris is getting a new Astral Planes expansion, in which you send ships through rifts to "completely different realms of existence, where fundamentals that were certain at home may not always be true". I've read a few sci-fi novels in my time, and have come to the conclusion that tunnelling into other dimensions is seldom a wise move, but there's no turning back at the threshold when you're nurturing a mighty galactic empire, I guess. Find a trailer below in which some poor science ship pilot gets his brain fried by a crackling window of purple impossibility. Read more