The magic of the Illagers has spiraled out of control, creating a new being born from the shadows, more sinister than the rest of its clan. It appears sick and thin, but don't let its physique deceive you. It possesses superhuman abilities and an unknown magic, accompanied by an insatiable hunger. Many wonder what it hides beneath its dark smile.

The plague this being carries is known as "Nightfall." It can be transmitted through the atrophic infections caused by its bites. Be very careful, as this disease is more dangerous than it seems. If you become infected, be mindful of your actions, because they can end worse than you expect.

It has 50 hit points, 6 damage, and is a undead (so it receives different damage from potions); It can spawn naturally in the world with a very low probability (night).

It also adds vampire bats (minions) that he can summon during combat (these start dying 50 seconds after spawning, similar to Vex, to prevent the world from becoming overrun with them). He only summons them when he's attacking (similar to the Evoker), Additionally, the Night Bleeder becomes invisible for one second when summoning his minions.

The night bleeder takes extra damage from the wooden sword (since its tip is technically like a stake). If he's about to die, he transforms into a bat (Blightwing) to escape, so it's best to kill him with critical hits to ensure a kill.

Every time he hits you or any mob, he heals for health (and can inflict a new effect called "Atrophy," but it won't always infect you; only 30% of his hits will). 

It has a "dash" ability, it will either jump on you or suddenly close the distance (but the closest it gets is 3 blocks unless it uses the ability repeatedly, but the probability is very low).

It also burns during the day, but it's smart and hide itself from the sun; When it burns, it panics and starts running frantically to find shade (although its panic decreases if it's fighting).

It has 3 skin variants, and these are retained even after it transforms into a bat and returns to normal.

Upon death (for real), it can drop emeralds (3-5) , cursed tusk (1-2) , and, with a very low probability, a totem.

If you see it with a spyglass, it will become invisible

It can appear in raids (only in the last waves and in small numbers, a maximum of 2). When it appears in raids, it gains fire resistance for about 15 seconds (to ensure it gets close to the village at least and doesn't start crying from the burns).

Vampire bats are hostile mobs that can appear at night or be summoned by the Night Bleeder. They have 8 hit points and 2 damage. They attack in groups or hordes, and their attack is divided into two modes: "suction" and "charge."

In suction mode, they will attach themselves to the enemy and constantly drain its life.

In charge mode, they will charge at the enemy, pushing them at full speed (but will be stunned for 1.5 seconds).

During the day they seek to sleep on the roofs of caves or in the surface in trees

Defeating the Night Bleeder has a chance that it won't die and will transform into a Blightwing to escape and survive the fight.

The Blightwing has 14 hit points. It's usually cowardly and flees from its enemies, but if you hit it, it can charge at you to distract you and continue its escape or harass you while it buys time. After appearing, it will need 30 seconds to transform back into a Night Bleeder. An interesting detail you might notice is that it retains pieces of the Night Bleeder's clothing from before transforming.

Are neutral mobs that can appear at night or if a villager dies while infected by atrophy; Just like the villagers, their skin depends on the biome they spawn.

They function similarly to the Night Bleeder, but have less health and damage, cannot summon bats, and their dashes are shorter. You can cure them by feeding them an Immunity Potion or hitting them with an Immunity Arrow (but they don't like it).

Vampire Villagers have a hunger system that determines their aggression. They can calm down by killing a mob or by feeding them a raw beef.

Vampire Villagers have four professions, which you can obtain by giving (block in the hand and right-click) them different blocks:

-Alchemist: Obtained by giving a Vampire Villager a Brewing Stand. They sell alchemy-related items, and as a special trade, they can sell you an Immunity Potion.

-Slaughter: Obtained by giving a Vampire Villager a Smoker. They buy certain Reds food items; as a special trade, can sell you dried meat, a new item for the mod.

-Chronicler: Obtained by giving a vampire villager a Chiseled Bookshelf. Buys items related to writing and history. As a special trade, they can sell you a Cursed Card, a new item for the mod.

-Bard: Obtained by giving a vampire villager a Note Block. Buys music discs. As a special trade, they sell a Lute, a new item for the mod.

This effect is like a nerfed poison, but every time you take damage, there's a chance you'll gain Weakness for 2 seconds (if a mob dies from this effect or while it's active, it transforms into a vampire bat); If a night bleeder bites you while you are infected, the effect can reach level 2, multiplying its negative effects and the damage you receive from it.

which makes you immune to Atrophy. It can also cure Hunger, Wither, and Poison every 4 seconds (50% chance). The effect lasts quite a while, 10 minutes. Its potion is made with cursed tusk. also every 5 seconds it can restore one heart of hp.

It allows you to infect mobs with the atrophy effect if you hit them in melee.

is used to make immunity potions and can be sold to cleric villagers.

Also can trade this item with the cleric villager

It allows you to dash like a vampire (with right click) and sometimes grants passive speed if you hold it in either hand.

When used, it will calm nearby mobs (within a 15-block range). If they attack in melee, they will also be unable to damage you for 4 seconds. Additionally, it grants the player who plays the melody night vision for 20 seconds, depending on the number of mobs around. The lute (whether you can see them or not) generates more musical notes.

This food possesses a remnant of vampiric power. When eaten, it can instantly heal you for 1 to 3 hearts of health (if it is night or there is a full moon, you are more likely to recover more health).

It allows you to can cure any mob of the atrophy effect, it can also cure vampire villagers by shoting them; if you hit a nightbleeder or any other undead, they will burst into flames; It releases yellow particles while in flight; upon landing, if it doesn't hit a mob, it spills some of the potion's liquid.

It allows you to infect other mobs with the atrophy effect by shoting them. It has 2 levels; depending on which one it is, it does more damage and the potency of the atrophy effect will be stronger (but it will last less time);It releases dark red particles while in flight; upon landing, if it doesn't hit a mob, relase smoke particules.

Tusk arrow craft:

Inmunity arrow craft:

The Night Bleeder can drop it if you kill it in one hit by falling with a sledgehammer (in Neo-Forge version 1.21.1) or if you kill it with a wooden sword by falling from a height of more than 10 blocks (in Neo-Forge version 1.20.1).

It has to be during the night. Its the "Night" "Fall"

Nightmares can occur when you fall asleep. These can cause sleep paralysis, preventing you from getting out of bed (you'll instantly fall back asleep if you try).

After four seconds, you'll be forcibly awakened, and vampires will attempt to attack you. There are two possibilities: either a horde of vampire bats will attack you, or a small group of Blinkwings about to transform into Night Bleeders.

The probability of having nightmares is very low, but it increases if you possess vampiric objects or are infected with Atrophy.

If you are infected with the atrophy effect, the danger increases. Be careful with your actions, because you could unleash a dangerous evil, a night that seems endless.

During this night, vampires are empowered, undead creatures cannot be burned (even if struck with fire), and the smoke in the air extinguishes flames very quickly.

A pale fog called "miasma" will be present, a result of the plague in the environment.

The event lasts 2 to 3 nights, during which the sun will not rise and you will be stalked by night bleeders, vampire bats, vampire villagers, and blightwings; You also can't sleep (but don't worry, if you play in creative mode you can, and with the command "/time set 2d" you can advance the event faster)

How does the event occur? If you have the Atrophy effect, it can be triggered if one of these three conditions is met:
- The effect was supposed to kill you, but you were saved by a Totem of Immortality. You will be saved, but the effect will be released.

- You are having a nightmare while infected with the effect.

- There is a strong vampiric presence around you while you have the effect (be very careful not to let Vampire Bats, Night Bleeders, and Blightwings accumulate).

There are a total of 9 achievements (obtainable).

Most are very easy, and the achievement thumbnail offers clues on how to unlock it; The two most difficult are:

- Curiosity over morality (obtain all 4 items sold by the vampire villagers in the mod)
- Night-fall (achievement tied to obtaining the mod's music disc; To do this you must kill a night bleeder with a hit from a mace while falling during the night in 1.21.1 neoforge; If you're on version 1.20.1 forge, you can do it with a wooden sword from more than 10 blocks high.)