What interesting sci-fi weaponry exists in your settings?

Yinrih don't use nukes, as they never bothered to weaponize them before discovering how to yeet things at significant fractions of the speed of light.

I've mentioned retribution fields before, which are force fields that absorb the kinetic energy of projectiles and then fire that energy back at the attacker. They were invented to counter...

...Quasiluminal munitions (Commonthroat gkg rDFrlmqrLPq or more often known by the military slang term gkrdfg, a clipped and reduced form of the above) are projectiles that travel at relativistic speeds and whose destructive power comes solely from their kinetic energy rather than a incendiary or nuclear payload.

Force projectors are used at shorter ranges. As the name implies they project force at a distance. As weapons you mostly see them on paw gauntlets as part of powered armor. By thrusting the palm forward a force extends outward beyond the reach of the attacker's foreleg, sort of a long-distance punch. They have scalong issues though. they convert surrounding oxygen to ozone, and can't be operated in atmosphere beyond a certain size for reasons I have yet to figure out.

Since yinrih are quadrupeds they can't practically use human guns. Modern soldiers use back mounted drone capsules that hover nearby and fire at enemies, similar to the Option power-up from Gradius. Older firearms are saddle-mounted and sit on the back and have a tail-actuated trigger.