Okay.... Lets use some made of quantum mechanics. Look up Cthulhu and click on the Wikipedia link. Imagine a great alien race prospering on pluto. now lets assume their Cthulhu-ish now these extraterrestrials have a successful, but very annoying space drive. Now lets say they get wiped out by this other alien race and now the technology is ripe for the picking (not really bu the space drive survived) now to get this thing you need a very very very high tier spacecraft as well as a cryogenic sequence. Now you make it to Pluto and you find a very large dungeon (which will be rare) now great you found said dungeon, Clear it. This will consist of several of the Cthulhu entities and their very very strong. Now you manage to clear the dungeon, BARELY! Now you find this nice little FTL drive great just great. What now you ask? Well How are you meant to power it. Missans (Butchered the name but the quantum mechanic particle)! Now how do you make these missians well of course with a finally tuned Quark specificaly a Quark with the flavor Charmed (Wtf are flavors you ask? Go to high school and take quantum physics). Whoo you found how to power it now you have to use a crap ton of power to stabilize the Quark and you need to have it tuned to make Missans (Butchered the name but the quantum mechanic particle). Now to direct the Missans (Butchered the name but the quantum mechanic particle) at the FTL drive using a very expensive Missan cannon. This would be like a 20 by 20 multi block structure. Again now you need to keep the FTL drive from screwing up so you need to make a magnetic stabilizer to keep it in the exact same place. Cool you have everything now other than essentials (Oxygen, Food, Water) which I'll let you get creative with this (Suggestions Below). Now you get to make a very large ship which has enough to power the Cannon, Stabilizer, Magnetic stabilizer and so one.
Now this would need galacticraft to have a water separator to make water into oxygen, and an advanced system to allow you to make a crap ton of food (or store it).
I would also you add a way to make mass power another 10 by 10 structure which could seperate quarks and make them into quarkium which could be put into a reactor and make a crap ton of power.
Please tell me if a missed anything I probably did.
Now this would need galacticraft to have a water separator to make water into oxygen, and an advanced system to allow you to make a crap ton of food (or store it).
I would also you add a way to make mass power another 10 by 10 structure which could seperate quarks and make them into quarkium which could be put into a reactor and make a crap ton of power.
Please tell me if a missed anything I probably did.