Most likely super weapons in the space stage will be extremely powerful and unusual. From nanorobots devouring entire planets or, for example, star exploders, in general, there are many ideas for such weapons and, most likely, you will have them in the middle stages, although they most likely will not be as technologically advanced, for example, you there will be no weapon that will turn stars into black holes. And by the way, what is the maximum superweapon we can create, that is, we cannot do a thing that is capable of disintegrating reality?
Most powerful superweapon, hmm, depends on what theories of everything you subscribe to, and how much license we are giving the player to effect the quantum world. If everything’s in their favor, using Clarktech and with string theory as the bases of the world, the player could distroy all realities before they ever existed. Using the conservative estimate of “nothing new under the sun” logic, giant galaxy destroying lasers. In between, and most likely the maximum, would be self-destructing the observable universe with a true vacuum, dark energy weirdness, or time travel. Edit: oh and with ftl there are no range limitations on the weaker two, and so you can use the observable universe killer without killing yourself, but the enemy can now escape it too.
Black hole bomb. Destroys entire systems, and there’s even something left behind to clean up the evidence. Basically, take a black hole, surround it in mirrors, remove a panel to fire a powerful laser aiming close to the event horizon of the black hole, (this will built up energy every time it gets close to the horizon) replace the mirror panel and let it sit, then, BOOM! just like that, you destroyed an entire solar system, maybe even dooming others in the process!
You’d need gamma mirrors or something like that, and prolly either pulsars or micro black holes.
You could also use a sudden strong gravitational pull to make a black holes inner horizon overlap its outer horizon on one side, creating a laser with the mass of a galaxy, only one shot though, until you find another.
There are really infinite possibilities for this, inject a bomb into a star, create a black hole, hurtle one system into another, there are lots.
Please don’t double post, edit the previous post instead.
Also one thing I’ve randomly learned about black holes that they aren’t magical sucking devices, they just have enormous gravity. So while they can definitely disturb the planetary orbits and mess up a solar system, it might not be that likely that they can just gobble up all the stuff there to leave no trace.
I know but you can still hurtle things into it.