Antimatter Weaponry

Antimatter still can only be obtained through artificial creation in partical colliders which can be configured to create a much larger amount than they ever could in the 20 or 21st century but still need hundreds if not thousands operating simultaneously for years to even produce a singular gram of the material. For this reason antimatter is not a viable military weapon outside of specific high priority targets so nuclear weapons are still far more common and only militaries or government companies would have any ability to access it due to the vast scale of manpower and reasources needed to even begin to get it in quantities large engough to be useful.

The first use in anger of an antimatter weapon was first used as a primitive bomb designated "planet cracker" by the Redstone Astronautics Corporation in 2334 and would soon lead to the most infamous atrocity in human history when a militarised wing of the Redstone Astronautics Corporation used their new experimental antimatter weapon for the first and only time on the population of Verinox killing at least half a billion people in a split second and leading to the weapons immediate ban by all three human empires (although all three would ignore this and begin testing their own anti matter weapons systems which would be developed over the coming centuries). Antimatter by 2500 is very uncommon and outside of very specific industrial purposes, being heavily regulated and seen as incredibly dangerous by the majority of people everywhere but the USR where antimatter is used far more commonly (still rare) for machines too small for nuclear power but requiring a near limitless power source.