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{{italic title}}
{{distinguish|Minecraft}}
{{discontinued|This edition is no longer updated but can still be downloaded through third-party means.}}
{{Infobox program
| title = ''Minecraft 4k''
| image = 4k Comparison.gif
| imagesize = 280px
| author = [[Minecraft:Notch|Markus "Notch" Persson]]
| platform = {{os|Java}} {{w|Java (software platform)|Java}}, {{w|Web browser|🌐}}
| programming language = {{OS|Java}} (Java version) {{OS|JS}} (Web version)
| date = December 2, 2009<ref name="forum"/> (Java version) 
December 2, 2012<ref>{{tweet|notch|275331530040160256|Trying http://jsfiddle.net: http://jsfiddle.net/uzMPU/|December 2, 2012}}</ref> ([[Minecraft:4k-JavaScript|JavaScript version]])
| version = [[Minecraft:4k-JavaScript|4k (JavaScript version)]]
| size = 2.52 KiB (2,581 bytes) (Java version) 
7.40 KiB (7,582 bytes) ([[Minecraft:4k-JavaScript|JavaScript version]])
| license = Proprietary
| source available = No (Java version) Yes ([[Minecraft:4k-JavaScript|JavaScript version]])
}}

'''''Minecraft 4k''''' was an edition of ''[[Minecraft:Minecraft]]'' developed for the 2010 {{w|Java 4K Game Programming Contest|Java 4K}} contest, where the entry games were required to be within four {{w|Byte#Multiple-byte units|kibibytes}} (4096 bytes) in size.<ref name="forum"> {{citation|url=https://web.archive.org/web/20150809054725/http://www.java-gaming.org/index.php?topic=21638.0|title=Minecraft 4k (very early build)|website=Java-Gaming.org|author=Markus_Persson|date=December 3, 2009}}</ref>

[[Minecraft:4k-1|The initial version]], released on December 2, 2009, was more limited than any other edition of ''Minecraft'' ever released to the public, including the pre-Classic version that is available from the ''[[Minecraft:Minecraft Launcher]]''. [[Minecraft:4k-2|An update]] on December 4, 2009, changed the controls and added widescreen, more [[Minecraft:block]]s, and the ability to place and destroy blocks.<ref>{{citation|url=https://web.archive.org/web/20180514175231/http://www.java-gaming.org/topics/minecraft-4k-very-early-build/21638/msg/177585/view.html|title=Minecraft 4k (very early build)|website=Java-Gaming.org|author=Markus_Persson|date=December 3, 2009|quote=Widescreen! Many block types! Building and destroying blocks! Different mouse look that frees up both buttons! Less bugs!
Also, the .pack.gz is STILL under 2kb :P}}</ref> The original page hosting the game was removed in November 2014.

On December 2, 2012, Notch released [[Minecraft:4k-JavaScript|a JavaScript version]] of ''Minecraft 4k''. It is not possible to move or look around in this version, though the camera or world does move by itself, and there is a [[Minecraft:/Water|blue water-like block]] in addition to the other block types.<ref>{{tweet|notch|275331530040160256|Trying http://jsfiddle.net: http://jsfiddle.net/uzMPU/|December 2, 2012}}</ref>

== Gameplay ==
=== General===
The [[Minecraft:player]] can place and destroy [[Minecraft:block]]s. The only block the player can place is [[Minecraft:/Grass Block|grass]], reminiscent of the very early builds of ''Minecraft'' internally called [[Minecraft:RubyDung]] that are available from the ''[[Minecraft:Minecraft Launcher]]''. [[Minecraft:/Leaves|Leaves]] do not decay.

=== World ===
The same 64×64×63 [[Minecraft:block]] world is generated every time the game is loaded. The only blocks in the game – [[#Blocks|air]], [[Minecraft:/Grass Block|grass]], [[Minecraft:/Dirt|dirt]], [[Minecraft:/Stone|stone]], [[Minecraft:/Bricks|bricks]], [[Minecraft:/Log|log]], and [[Minecraft:/Leaves|leaves]] – are scattered throughout the world. No [[Minecraft:mob]]s exist.

The initial build of the game only has one type of block, which uses a XOR fractal as a texture.

An invisible wall surrounds the world, preventing the [[Minecraft:player]] from escaping, similar to [[Minecraft:invisible bedrock]] or an [[Minecraft:old]] world.

=== Controls ===
The [[Minecraft:player]] can move around using standard {{Key|W|A|S|D}} controls, as well as jump using {{Key|Space}}.

Left- and right-clicking controls are different from traditional ''Minecraft'' controls: right-click doesn't place [[Minecraft:block]]s, and left-click doesn't destroy them. Instead, the opposite is true (with the addition of a middle-click control that also places blocks).

The camera in Minecraft 4K also acts differently from any other ''Minecraft'' edition. The camera only moves when the player moves the cursor a considerably large distance away from the center of the game's {{w|viewport}}, with a motion similar to that of the cinematic camera {{in|je}}. It is also worth mentioning that camera view and FOV cannot be changed in this edition. Blocks in the world are selected by the cursor, rather than the center of the viewport.

The game lacks any sort of options menu or HUD.

== Graphics ==
The graphics appear pixelated as a result of the game rendering at a low resolution. Even when running at a higher resolution, the game does not scale the resolution properly and the noisy appearance is retained. [[Minecraft:Block]] textures are similar to those used in [[Minecraft:Java Edition Classic]], as [[Minecraft:Java Edition Classic 0.30|Classic 0.30]] was the most recent version of ''Minecraft'' at the time. Most blocks appear noisier than their ''Minecraft'' counterparts, although some blocks, especially stone, are very different. The [[Minecraft:sky]] is black due to the lack of a skybox.

When hovering the cursor over a block, the outline of the block is thick and white, as opposed to ''Minecraft'''s thin gray selection outline.

<gallery>
Minecraft 4k textures.png|A comparison of ''Minecraft 4k'''s and ''Minecraft'' Classic's [[Minecraft:block]] textures.
4k-Block-Selection-Outline.png|A screenshot showing the thick white outline around the selected block.
4k flashpoint.png|Another screenshot showing the same.
4k Comparison.gif|The first and second versions of ''Minecraft 4k''.
4k JavaScript.gif|The JavaScript version of ''Minecraft 4k''.
</gallery>

== Blocks ==
The first version of the game has a single non-air block.

In the second version, block IDs are stored with four bits, resulting in 16 possible IDs. The majority of these (10) are filled in by slightly differently textured dirt.

The [[Minecraft:4k-JavaScript|JavaScript]] version stores block IDs in the same way as the second version. Nearly all blocks from the previous version are available, except for one variant of dirt, which has been replaced by a blue, water-like block exclusive to this version.

{| class="wikitable" style="text-align:center"
|-
! rowspan="2" |ID
! rowspan="2" |Block
! colspan="3" |Textures
! rowspan="2" |Render
|-
!Top
!Side
!Bottom
|-
! colspan="6" |[[Minecraft:4k-1]]
|-
|0
|Air
| colspan="3" |n/a
|
[[File:Blank.png|64px]]
|-
|1
|[[Minecraft:XOR Block]]{{Conjecture|tag=1|nocat=1}}
|{{pximg|XOR (top texture) 4K1.png|32px}}
|{{pximg|XOR (side texture) 4K1.png|32px}}
|{{pximg|XOR (bottom texture) 4K1.png|32px}}
|[[File:XOR 4K1.png|64px]]
|-
! colspan="6" |[[Minecraft:4k-2]]
|-
|0
|Air
| colspan="3" |n/a
|
[[File:Blank.png|64px]]
|-
|1
|[[Minecraft:/Grass Block/]]
|{{pximg|Grass Block (top texture) 4K2.png|32px}}
|{{pximg|Grass Block (side texture) 4K2.png|32px}}
|{{pximg|Grass Block (bottom texture) 4K2.png|32px}}
|[[File:Grass Block 4K2.png|64px]]
|-
|2
|[[Minecraft:/Dirt/]]
|{{pximg|Dirt 2 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 2 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 2 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 2 4K2.png|64px]]
|-
|3
|Dirt
|{{pximg|Dirt 3 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 3 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 3 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 3 4K2.png|64px]]
|-
|4
|[[Minecraft:/Stone/]]
|{{pximg|Stone (top texture) 4K2.png|32px}}
|{{pximg|Stone (side texture) 4K2.png|32px}}
|{{pximg|Stone (bottom texture) 4K2.png|32px}}
|[[File:Stone 4K2.png|64px]]
|-
|5
|[[Minecraft:/Bricks/]]
|{{pximg|Bricks (top texture) 4K2.png|32px}}
|{{pximg|Bricks (side texture) 4K2.png|32px}}
|{{pximg|Bricks (bottom texture) 4K2.png|32px}}
|[[File:Bricks 4K2.png|64px]]
|-
|6
|Dirt
|{{pximg|Dirt 6 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 6 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 6 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 6 4K2.png|64px]]
|-
|7
|[[Minecraft:/Log/]]
|{{pximg|Log (top texture) 4K2.png|32px}}
|{{pximg|Log (side texture) 4K2.png|32px}}
|{{pximg|Log (bottom texture) 4K2.png|32px}}
|[[File:Log 4K2.png|64px]]
|-
|8
|[[Minecraft:/Leaves/]]
|{{pximg|Leaves (top texture) 4K2.png|32px}}
|{{pximg|Leaves (side texture) 4K2.png|32px}}
|{{pximg|Leaves (bottom texture) 4K2.png|32px}}
|[[File:Leaves 4K2.png|64px]]
|-
|9
|Dirt
|{{pximg|Dirt 9 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 9 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 9 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 9 4K2.png|64px]]
|-
| 10
|Dirt
|{{pximg|Dirt 10 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 10 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 10 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 10 4K2.png|64px]]
|-
|11
|Dirt
|{{pximg|Dirt 11 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 11 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 11 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 11 4K2.png|64px]]
|-
|12
|Dirt
|{{pximg|Dirt 12 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 12 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 12 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 12 4K2.png|64px]]
|-
|13
|Dirt
|{{pximg|Dirt 13 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 13 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 13 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 13 4K2.png|64px]]
|-
|14
|Dirt
|{{pximg|Dirt 14 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 14 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 14 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 14 4K2.png|64px]]
|-
|15
|Dirt
|{{pximg|Dirt 15 (top texture) 4K2.png|32px}}
|{{pximg|Dirt 15 (side texture) 4K2.png|32px}}
|{{pximg|Dirt 15 (bottom texture) 4K2.png|32px}}
|[[File:Dirt 15 4K2.png|64px]]
|-
! colspan="6" |[[Minecraft:4k-JavaScript|JavaScript]]
|-
|9
|[[Minecraft:/Water|Water]]{{Conjecture|tag=1|nocat=1}}
|{{pximg|Water (top texture) 4KJS.png|32px}}
|{{pximg|Water (side texture) 4KJS.png|32px}}
|{{pximg|Water (bottom texture) 4KJS.png|32px}}
|[[File:Water 4KJS.png|64px]]
|}

== See also ==
*''[[Minecraft:Minicraft]]'', another game created for a contest.
*''[[Minecraft:Legend of the Chambered|Prelude of the Chambered]]'', another game created for a contest.
*''[[Minecraft:Zombie Town]]'': An unreleased sequel to ''"Left 4k Dead"'', another game Notch created for the Java 4K contest.
*''[https://web.archive.org/web/20060424151658/http://www.mojang.com/notch/j4k2k6/miners4k/ Miners4k]'', another game Notch created for the Java 4K contest.

== References ==
{{reflist}}

== External links ==
* [https://www.mojang.com/notch/j4k/minecraft4k/ Original page] on Mojang.com ([https://web.archive.org/web/20141101124251/https://www.mojang.com/notch/j4k/minecraft4k/ Archive])
* [http://jsfiddle.net/uzMPU JavaScript version]

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