[@Sophrus] Yeah, but antimatter is also a power source, basis of advanced warp technologies and cna be used to created buffed shields.

Neutronium just kinda, yknow, explodes.

[@NecroKnight]

Well, you said they live on that planet of yours. So I am guessing that they are the appointed rulers of the planet "Icarus". If you want to switch a resource rich, and hard to invade planet to a fleet of tin cans with oxygen in them, then you are free to do so, but know that fleets need to refuel somewhere, which is kinda hard if the whole Empire is trying to shoot you down for high treason.