Recurring legendary weapon in [[From Software]] games, first appearing in [[King's Field]]. It is a [[greatsword]] that [[glowing weapon|glows]] with otherworldly green (sometimes blue) light, and can launch projectiles when swung.

* [[Armored Core]] has the "LS-99-MOONLIGHT" (among other names).
* [[Demon's Souls]] has the "Large Sword of Moonlight".
* [[Dark Souls (series)|]] has the "Moonlight Greatsword", associated with [[Seath the Scaleless]].
** A replica called the "Bluemoon Greatsword" also exists in [[Dark Souls II|II]].
* [[Bloodborne]] has "Holy Moonlight Sword", wielded by [[Ludwig the Accursed]]. There is also a replica, "[[Ludwig's Holy Blade]]".
* [[Elden Ring]] has the "Dark Moon Greatsword", bestowed by [[Ranni the Witch]] at the end of her questline.
月光の大剣 月光の聖剣 ムーンライトソード