Nightmares are experiences where you find yourself in a dark room, and something happens to you. It could be mobs attacking, or falling from the sky and having to save yourself. Nightmares are fairly hard, but you can get good rewards from them. To get into a nightmare, all you have to do is sleep in a bed, and there is a 20% chance of getting one.

To stop nightmares, put a item frame next to your bed and put a cobweb in it. You will make a dreamcatcher, which stops nightmares if you are sleeping in the bed it is next to.

Here's the fun part. The magic. When you beat a nightmare, you get a dream fragment. dream fragments on their own are pretty boring. The fun part comes when you use one to craft a dreamcasting wand. Throw a diamond block, a nether star, a stick, and a dream fragment on the ground, and you will be given the dreamcaster. The dreamcaster uses dream fragments as fuel, so make sure you have them in your inventory. Put the dream fragment you want to use in your offhand, and right click with the dreamcaster. One dream fragment in your offhand will be used up, and all non undead mobs in a 10 block radius will take 3 hearts of damage. As long as you have dream fragments in your inventory offhand, you can cast the dreamcaster.

Normal dreamcasters only can cast every 60 ticks and only affect mobs in a 10 block radius (or different for some fragments), but you can upgrade the speed and range of your dreamcaster with a dream rune. Get dream runes by entering the herobrine nightmare and taking it from his hand. Then, throw the dreamcaster and the rune on the ground to receive your dreamcaster level 2, which can cast once every 30 ticks and has a bigger attack radius of 17 blocks (may differ for certain dream fragments).

PRO TIP: The dreamcaster will check to make sure the dream fragment is in your offhand, but it will use up the fragments in your inventory before it uses the one in your offhand. This means you can have one dream fragment in your offhand, and 64 dreamfragments in your inventory, and still get 65 casts.

You can also get different types of dream fragments that do different things.

In addition to the generic dream fragment, you can get other ones too.

1.15.x or 1.16.x+ : First, unzip the datapack so you have a folder. Next, navigate to your minecraft world folder (there are millions of youtube videos on how to do this) and put it in your datapacks folder within the world. Type /reload within the world, and it should work.

1.16.x : When starting a new world, click datapacks. Click open folder, and drag the unzipped file in. Click done, and then click datapacks again. The datapack should be on the right column. You can then bring it to the left column and start your world.

Q: Does it work in multiplayer?
A: Sort of. If one person is having a nightmare, and another person's nightmare starts, the first nightmare stops and the second one begins with both people in it.


Q: How can i trigger nightmares directly?
A: First, type in "/function nightmares:nm/nightmares/" DO NOT PRESS ENTER!!! look in the command prompt, and you will see a list of the functions that run the nightmares. click the one you want to run, press enter, and sit back and scream :).


Q: Will you be adding more nightmares?
A: Definitely. I stopped because I ran out of ideas. If I come up with one, or you guys give me one through the comments, I will definitely add it.

Q: How can I get the items directly?
A:
Dream fragment : /give @s quartz{CustomModelData:1,display:{Name:"\"Dream Fragment\"",Lore:["\"normal\""]}} 1
undead fragment: /give @s quartz{CustomModelData:4,display:{Name:"\"Dream Fragment\"",Lore:["\"undead\""]}} 1
Magnetism fragment: /give @s quartz{CustomModelData:5,display:{Name:"\"Dream Fragment\"",Lore:["\"magnet\""]}} 1
Dream Caster: /function nightmares:nm/craft/dreamcaster
Dream Caster 2: /function nightmares:nm/craft/dreamcaster2

Q: Where are the nightmares taking place?
A: The nightmares are in a giant box at 0, 0 made of jigsaw blocks (so that I can edit textures. Don't worry, you won't open them in survival), and the nightmares are created when you enter. If anyone sends me a better texture, I will consider replacing it.