Laser Sail ... well, this thing will serve as the basis for the probes.
But if you need to dump a few tons of cargo, then probably, as the person wrote below, this is a Z-Pinch or ICF.
But right now we are talking about the ICF, or rather, Deadalus.
But the problem is that Daedalus will not work, but in the game it will be similar to the working method of interstellar travel.
Why? well, at least two reasons
1. The national means of ignition didn’t manage to achieve normal and trouble-free ignition of the deuterium-tritium capsule.
If there are such problems with a deuterium-tritium capsule, then I’m even afraid to imagine what kind of problems there will be with the ignition of a deuterium-helium-3 tablet.
2. The fact that in its current form ICF Daedalus will not work is said by people directly related to this area. http://www.icarusinterstellar.org/e-beam-icf-for-daedalus-reconsidered/
KSP is a kind of simulator in which scientific accuracy has a major role to play.
You say, but this game allows things like scientific hypotheses.
Yes, I agree, but there is one big BUT.
This is something that we have not yet explored, the path to the unknown or an almost complete confirmation of operability.
But in this case, we are fully aware that Deadalus will not work in real life.
Nevertheless, developers add it to the game. With such success, why not add the details for the Imperial Star Destroyer?
I see here only two more or less adequate options
1. Do not offer this game at all.
2. To completely rethink the principles of Daedalus from a modern point of view.
Perhaps this is not even a confirmed hypothesis, but at least it will not be known. And she will have a chance to really work.
But adding the obviously useless Daedalus in the form of an engine with the ICF in accordance with the plans of the 1980s is kind of crazy.
The same metal hydrogen engines are more likely.
For even from the most skeptical point of view, this is a scientific hypothesis, which has not yet been refuted, but also not confirmed.
At that time, it would seem that the working Daedalus was refuted back in 2013.
At least again, in the form in which it was originally, and which will be in the game.
It is written through google translator, so ... confusion is possible.