Crossbows in Elden Ring: Nightreign are quick, accurate ranged weapons that don’t scale with stats. They fire bolts with high precision but require reloading after each shot, limiting their damge output compared to bows. Crossbow can be a good secondary weapon for any build.
NightreignCrossbows - Nightreign Wiki

Arbalest
Crossbow • Lvl Required 1
Weapon Skill: Kick
Push an enemy back with a high kick. Effective against enemies who are guarding, and can break a foe's stance. Sometimes a simple tool is the most effective.
Large crossbow made from composite materials. One of the largest of all bolt firing devices. Its limbs are more pliable than metallic ones, allowing bolts fired from this weapon to pierce even forged of steel.

Crepus's Black-key Crossbow
Crossbow • Lvl Required 3
Weapon Skill: Kick
Push an enemy back with a high kick. Effective against enemies who are guarding, and can break a foe's stance. Sometimes a simple tool is the most effective.
Black crossbow featuring a long stock. Used for sniping, it has a very long range. Weapon of Crepus, who served the Two Fingers from the shadows of the Roundtable as the head confessor.

Full Moon Crossbow
Crossbow • Lvl Required 3
Weapon Skill: Kick
Push an enemy back with a high kick. Effective against enemies who are guarding, and can break a foe's stance. Sometimes a simple tool is the most effective.
One-of-a-kind enchanted crossbow of exquisitely detailed craftsmanship. Made to celebrate the matrimonial union, and reconciliation, between the houses of the Erdtree and the Full Moon, Leyndell and Raya Lucaria. The two rings dance when reloading the weapon.

Heavy Crossbow
Crossbow • Lvl Required 1
Weapon Skill: Kick
Push an enemy back with a high kick. Effective against enemies who are guarding, and can break a foe's stance. Sometimes a simple tool is the most effective.
Heavy crossbow with iron limbs, increasing damage dealt. Commonly employed in the Shattering.

Light Crossbow
Crossbow • Lvl Required 1
Weapon Skill: Kick
Push an enemy back with a high kick. Effective against enemies who are guarding, and can break a foe's stance. Sometimes a simple tool is the most effective.
Ranged weapon made from a bow fixed to a stock. Deals good damage and is simple to use, but requires reloading after firing.

Pulley Crossbow
Crossbow • Lvl Required 7
Weapon Skill: Kick
Push an enemy back with a high kick. Effective against enemies who are guarding, and can break a foe's stance. Sometimes a simple tool is the most effective.
Crossbow made with pulleys and power springs. The complex mechanism, which required advanced mathematical and mechanical understanding to craft, was likely made by a certain genius who learned Golden Order fundamentalism. One touch fires a volley of bolts.

Soldier's Crossbow
Crossbow • Lvl Required 1
Weapon Skill: Kick
Push an enemy back with a high kick. Effective against enemies who are guarding, and can break a foe's stance. Sometimes a simple tool is the most effective.
A crossbow of simple make, usable by anyone, but lacking in both power and accuracy.