History Main / Lunacy

* ''VideoGame/{{Bloodborne}}'': The Moon plays an intricate part in the game's lore and themes, usually tying in with the themes of [[AllPeriodsArePMS blood and the beginnings, endings and repeating of cycles there-in]]. After the player kills Rom, the Vacuouse Spider, the blood moon descends, empowering the supernatural phenomena that plagues Yharnam and driving those already unstable at the beginning to fits of madness. This is best demonstrated with Sister Adella, who goes completely insane and tries to kill the player after killing Arianna [[ForWantOfANail for want of her blood]], or for Arianna who [[MysticalPregnancy suffers labor pains]] and then gives birth to immaculate Lovecraft slug-freak-baby. Also, the moon has a god in it.

* ''Literature/ConanTheBarbarian'': In "Literature/ShadowsInTheMoonlight" Olivia deduces [[DreamingOfTimesGoneBy from her dream]] that the moonlight is restoring the TakenForGranite statues.
-->''"There is witchcraft in the moon," she shuddered. "He pointed at the moon; while the moon shines on them, they live. So I believe."''
* ''Literature/{{Discworld}}'' subverts the "full moon = magic" cliché: the effect of the full moon on werewolves is mentioned but rarely has much impact (though there is the humorous consequence of werewolves suffering from their "time of the month" -- PLT, Pre-Lunar Tension). Instead, on Discworld the most magical phase is a half moon, because it represents LiminalTime and [[BalanceBetweenGoodAndEvil the edge between light and darkness]].

* Creator/SimonRGreen has this as a major theme in some of his works.
** ''Literature/DrinkingMidnightWine'': Features an AnthropomorphicPersonification of the moon itself who is stark staring bonkers.
** ''Literature/ForestKingdom'': In book 1 (''Blue Moon Rising''), the world is plunged into chaos and darkness when the titular blue moon rises and a demon horde is unleashed.
* ''Literature/JamesBond'': In ''Literature/FromRussiaWithLove'', Red Grant, [=SMERSH's=] Chief Executioner, has homicidal urges coinciding with the full moon; his SMERSH file categorizes him as a [[HollywoodPsych manic-depressive psychopath]]. In the intro of the novel his wristwatch is described to show the phases of the moon.

* ''Series/{{Castle}}'': One episode focuses on two murders committed on the evening of the full moon; the beginning features a scene of utter chaos in the station house, with a whole load of lunatics and maniacs causing havoc in the squad room, and all the phones ringing off the hook... with Detective Beckett calmly sitting at her desk doing paperwork and Richard Castle happily sitting beside her with a bowl of popcorn watching the chaos.

* ''VideoGame/{{APICO}}'': During the full moon, your LuckStat increases while Honeycore resonates more strongly.

* In ''VideoGame/{{APICO}}'', your LuckStat increases during the full moon and Honeycore resonates more strongly during it.

** On August 30-September 1, 2023, ''VideoGame/PokemonSleep'' held its first global event, Good Sleep Day. It happens for three days every month near the full moon: the day before it, the day during it, and the day after it. During this, Snorlax consumes the full moon's energy to multiply its Drowsy Power by 1.5x before and after the full moon and 2x during it, thus drawing in more Pokémon in its sleep. Your Helpers get 3x as much EXP during the full moon (2x before and after it) and 1,000 bonus Sleep Points (500 before and after the full moon), but the latter only applies to the first sleep session recorded during those days.

* "Moon Crazy", on the Music/BlueOysterCult's 1979 album ''Music/{{Mirrors}}''.

See BadMoonRising for situations where the Moon itself is changed. See also MelancholyMoon for when used as a sad backdrop. ThePowerOfTheSun is often used as a {{Main/Foil}} to moon-based power, especially if there are CosmicMotifs featured in the work. See also GodOfTheMoon.

** Starting in August 2023, ''VideoGame/PokemonSleep'''s first global event, Good Sleep Day, happens for three days every month near the full moon: the day before it, the day during it, and the day after it. During this, Snorlax consumes the full moon's energy to multiply its Drowsy Power by 1.5x before and after the full moon and 2x during it, thus drawing in more Pokémon in its sleep. You also get 3x as much Research EXP during the full moon (2x before and after it) and 1,000 bonus Sleep Points (500 before and after the full moon), but the latter only applies to the first sleep session recorded during those days.

** The August 2023 Pokémon Presents revealed ''VideoGame/PokemonSleep'''s first global event: Good Sleep Day, which will happen every full moon. During this, Snorlax consumes the full moon's energy to maximize its Drowsy Power, thus drawing in more Pokémon in its sleep.