This can be anything from Hyperspace in Star Wars, Warp Drive in Star Trek, travel through the Warp in Warhammer 40k or anything else.
I’ve always liked “slow” FTL travel, where going a few light-years still takes a few days or so. I also really like travel through an alternate dimension like in 40k, Event Horizon, Witchspace in Elite Dangerous.
I wanna know your favorite versions, or do you prefer stories that obey the laws of known physics, like the Expanse or Rimworld?
Early versions of Stellaris had something similar, but reduced in scale- it’s a 4X grand strategy where you’re basically controlling a spacefaring species you create, if you’re not familiar with it.
They did away with multiple FTL systems at some point, but early on in the games lifespan when creating your species you’d pick between hyperdrives, wormholes, or warp iirc.
Hyperdrives were basically Star Wars style space travel- predetermined FTL ‘roads’ in space that you can travel along.
Warp was ‘the ship teleports from where it is to where it’s going’.
Wormhole was the most interesting one to me, because it used giant ‘hubs’ you’d need to build in space to… well, make a wormhole from the hub to wherever the ships were trying to go. The downsides were that you had to build hubs and they were expensive, and you could only actually leave from the hub itself which had a limit on how many wormholes it could make. The upside was that it had dramatically better range than the other FTL options so you could build one on the borders of an enemy and then basically show up wherever you wanted.