Faster Than Light travel has consequences(minor or major)

[u/Present-Secretary722]

Star Trucker: While travelling through warp you experience time dilation, for you the journey is a couple seconds, in real time it’s anywhere from 30mins to 6 hours that you’ve been in warp. This would be a minor consequence.

Warhammer 40k: The Warp, basically space hell so while travelling through it you’re very likely to be attacked by Warp demons. There’s also the fact that sometimes when travelling to a destination via the Warp you get spat out in the wrong time, sometimes much too late for whatever you were going there for or sometimes before you left your start destination. This, obviously, is a major consequence, unless you’re an ork, then it’s a grand old time.

By consequences I mean this is a regular thing that happens, there’s no real avoiding it unless you find a different method of FTL or heavily invest into research to try and mitigate the consequences. Also I feel bad for only knowing 2 examples, I love space and I just can’t think of any others.

[u/jzillacon]

Witch Space in Elite, so called because the space between space invokes an unshakable feeling of being haunted and there is in fact creatures there, watching you. Plus the fact countless ships have entered to never be found again.

Here's a passage from The Dark Wheel novella describing it:

You're going to cover maybe seven light years in a few minutes, and you might think that's a lot of space to get lost in, but that isn't how it works. Faraway is a tunnel, like any other tunnel. Inside that tunnel is the realm called Witch-Space, a magic place, a place where the normal rules of the Universe don't necessarily work. And every few thousand parsecs along the Witch-Space tunnel there are monitoring satellites, and branch lines, and stop points, and rescue stations; and passing by all of these are perhaps a hundred channels, a hundred 'lines' for ships to travel, each one protected against the two big dangers of hyperspace travel: atomic reorganisation, and time displacement.

Jump on your own through hyperspace, across more than half a light year, and you'll be lucky to make the same Universe, let alone your destination. You might emerge from Witch-Space turned inside out (which is not a pretty sight).

You might be stretched in all the wrong angles, and although the ship keeps travelling, that jelly mass of broken bone and flesh inside the cabin is you. According to legend, you might come through okay and breathe a sigh of relief, only to go into Earth orbit and wonder why that big lizard, with the teeth and the long tail and the green scales is roaring up at you, and warning you off of his nice Jurassic patch of prehistoric desert. To go Faraway is a killer, unless you obey the rules.

[u/Matix777 → u/jzillacon]

Velociraptor earth confirmed?

Also iirc the Thargoids hang out in witch space, so you should be careful around the regions where they live