The Nether



The Nether (Also referred to as "The Nexus" in Notch's Blog and was previously known as Hell and The Slip) is part of the Minecraft Halloween Update. It exists in a completely different world from the normal world above. If the player dies in The Nether, they will be transported back to the spawn point on the surface world. However, his/her dropped items will be in the Nether around the place he/she died.

Terrain
The terrain is dimly lit, full of lava streams flowing from the ceiling, sudden cliffs, and lava lakes, making it extremely dangerous to explore. The ceiling and the base of the Nether are made of bedrock. Mushrooms are also commonly found. Near the bottom of the map, very large lava pools are found.

Portals and Fast Travel
Portals are made by creating a 4x5 (2x3 on inside) door frame out of obsidian and then lighting the inside of the frame on fire with Flint and Steel. The corners of the frame may be left out, using only 10 obsidian. When you stand inside the portal for the first time, it will create a portal in its equivalent area of the Nether. A loading screen will appear during the change of worlds.

A portal can be shut down if part of the obsidian frame is removed.

When re-entering the normal world, any distance covered in The Nether is multiplied by 8, effectively making The Nether a fast travel zone that allows for greater distances to be covered in a short amount of time in the normal world.

There are two ways to use portals for fast travel. The first is to create 2 separate nether portals some large distance apart. To travel quickly between their overworld locations, you enter the nether at portal A, travel a short distance in the nether, then emerge back into the overworld at portal B. The distance traveled in the overworld will be 8x the distance traveled in the nether. When doing this, it is best to bring a minecart, lots of rails and a lot of cobblestone (as Ghasts cannot destroy it). Place the minecart rails, then create a wall around it using cobblestone. This will protect it from Ghast attacks. It is also recommended that you bring cobblestone with you into the Nether even if you are not building a trans-portal railway. Just bring it with you to build a small protective wall around your portal (so Ghasts cannot destroy it)!

The second, usually accidental, form of fast travel is to have 2 overworld portals connected to the same nether portal. This occurs if the overworld portals are too close together, or if the portal-placement algorithm has trouble finding a clear space. When this happens, you can enter either portal in the overworld, immediately re-enter the same portal, and you will emerge in the overworld at the first portal that was built. This is effectively one-way fast travel, since there is no way to enter the nether portal and come out through secondary portals.

Because The Nether is 1/8th the size of the normal world, the nether would be the fastest way to reach the edge of the generated map. By using minecart systems one could create a complex and fast means of travel between distant locations.

Due to the dangers in The Nether, it is recommended that travelers enclose the paths between their portals using glass or cobblestone, effectively making the nether safe for travel.

Walking through a portal will not teleport the player - in order to use them, the player has to stand still inside the purple haze until the loading screen appears. Currently, they will not transport mobs or minecarts. Attempting to go through a portal while in a minecart will result in the player needing to restart the game to continue.

Mobs
Mobs that spawn in the main world do not appear here. Instead, there are special mobs that appear only in the Nether (although Ghasts have an extremely small chance of spawning through a portal on the surface world.)


 * Ghasts - Flying jellyfish-like monsters that shoot explosives. They can be damaged by any conventional weapons, but they do not get hurt when on fire, only when touching it. A Ghast can fly into lava falls or lava lakes, but even if they burn they don't get damaged (As of the November 10th Update). The fireballs they shoot can be deflected back at them using a fist or any tool by hitting it just before impact (shooting an arrow or using the Fishing Rod on the fireballs works too). They drop gunpowder, But is very hard to obtain, since they're always flying around over lava lakes. Creepers provide a better source of gunpowder. Ghasts will destroy Netherrack blocks easily with their fireballs. This can be deadly if you are on thin ground high above lava, as they can shoot the ground out from under you as you dodge attacks. Cobblestone is an effective barrier that can withstand a ghast fireball attack. If a fireball hits your portal, the portal will go out and have to be relit with flint and steel again.


 * Zombie Pigmen - Peaceful, humanoid creatures that turn hostile when attacked. They drop a cooked porkchop when killed. They carry gold swords, and do 3 hearts of damage (Normal difficulty). They often appear in packs of 4, and tend to stay together. If one Zombie Pigmen turns hostile, then so will every one in the range of 32 blocks. The safest way is to fight a zombie pigman when they are alone.

Blocks
Blocks can be brought to and from the main world. So far, there are four block types only found in the Nether:


 * Netherrack - This block burns indefinitely, and is the main block type forming the Nether. Setting these on fire with Flint and Steel while travelling in the Nether is more economical than torches. Making torches is, for the most part, pointless in the Nether. Some of the netherrack is naturally on fire.


 * Glowstone - A golden block that glows indefinitely, commonly found as stalactites on the ceiling of the Nether. These can be used as a light source underwater on the surface world, and the powder produced when it is mined is suspected to be an ingredient in making lanterns when they are released.


 * Soul Sand - A brown block resembling a collage of creepers' faces. When walked on, it slows the movement speed of the player and mobs that walk across it, and makes them sink down a tiny bit, like quicksand or wet mud. It is possible to make one-way doors with Soul Sand.


 * Bedrock - Exactly the same as normal bedrock but tinted red and can be found at the top of the nether as well as the bottom.

There are five blocks that spawn in both worlds: Air, Lava, Dirt, Gravel and Bedrock (There is a bottom and top). Also found in both worlds are both brown and red mushrooms.

Water
Water cannot be placed from buckets normally in the Nether. Instead, it generates a steam effect and the fizz.ogg sound effect (the same used when lava destroys an object) is played. If an inventory hack is used to give the player a water block, they can place the block. The water block will behave and flow normally, and it will react with lava as usual, creating obsidian. An inventory hack can also be used to give the player an ice block, then place and break it to get water. Squid can also spawn in water placed in this way.

Because water is normally unplaceable in The Nether, if a player falls into a lava pit or otherwise catches fire, they are unable to put themselves out with water. It has been noted that walking through the Portal whilst on fire extinguishes the fire once on the other side, however, this does not always happen.

Planting & Growing
As water cannot be placed in the Nether, Sugar Cane will not be able to survive. Wheat, however, can be grown on well-lit dirt blocks, albeit slowly (unless bone meal is used, which speeds it up as usual). Using a sapling and a dirt block (don't forget a source of light), Trees will be able to grow. Its leaves will take a dead-looking brownish colour. Oddly, however, they grow in odd formations and occasionally morph shapes when they are altered. For example, a user plants a sapling in the nether and it grows into an odd-shaped windblown tree. He deletes a leaf from the tree and it morphs into a pine. This makes nether-trees useful for traps or endless log harvesting on occasion. Cactus blocks will be able to grow normally unlike trees, provided they are planted on Sand. In addition, flowers can survive in the Nether, but only with a light source nearby.

Naming
In the original announcement, Notch mentioned "a brand new Hell world". When the preview was sent out on 29 October 2010 to a couple of gaming websites, the new dimension was called the Slip. This was changed to The Nether on the day of the update release. It has since been referred to as 'The Nexus' on his personal blog, although there has been no indication as yet that there will be another name change.

File save location
Folder name is DIM-1.

Ambience
The most common ambience in the nether is the ghast's cries and the crackling of fire, along with low-pitched moans by Zombie Pigmen. It plays "ghast.ogg" which is the sound file that sounds similar to evil children screaming and crying for help. Zombie Pigmen usually oink and slurp, making the Nether very eerie and creepy to be in. Normal cave ambience also plays, although it is not often.

Trivia

 * When you warp from worlds, the direction you are facing is maintained (e.g., if you face east in the overworld and warp to the Nether, you will still be facing east).
 * While inside the Nether, Clocks and Compasses will be unable to tell the time or direction and will flail back and forth.
 * While inside the Nether, furnaces will stop smelting and plants will stop growing/decaying in the overworld. However, the day/night cycle continues while in the Nether.
 * It is possible, but very rare, for a Nether biome to be created on The Overworld. This is due to a bug.
 * The idea for the Nether may have come from a transportation method used in the novel series The Wheel of Time by Robert Jordan. Within this transportation system, the Ways, you could travel a massive amount of distance in a few days instead of weeks. Like the Nether, the Ways has many dangers. Notch also once said that Jake, his co-worker, was a big key to the Nether.
 * Another possible inspiration for the Nether are the Territories from Stephen King's novel "The Talisman." The main character flips from between the real world and the Territories throughout the book. Like the Nether, the Territories allow for faster travel.
 * If you open the inventory screen right before you warp to the loading screen, it will cause the loading text to glitch. However, it WILL NOT crash the game.
 * Sometimes, if two Overworld portals are connected to one portal in the Nether, then, depending on what side you go through, you can choose where you end up.

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