BrainF**k In Minecraft
by Sihuai2412
BrainF\*\*k In Minecraft adds four blocks that let players write and run small programs in the BrainF\*\*k language, which is Turing-complete.
What it does
The four blocks cover the core of the language. A pointer block moves left and right across a row of memory cells, and it is drawn on screen so its position can be followed. Increment and decrement commands change the value of the current cell, while loop markers skip ahead when the current cell holds 0 and jump back to the matching start otherwise. An output command prints the value of the current cell as an ASCII character, and the input command, which would read a character into a cell, is not implemented yet.
Beyond the language blocks, the mod adds a Memory Unit that stores a value for the pointer to read and write, with support for negative numbers. A Chance Block returns a random number from 1 to 6 or from -1 to -6. A Boolean Unit switches between a true and a false state each time the plus command is applied, and a Color Unit displays a color whose red, green or blue value commands adjust, cycling between channels on each press.
The mod is built for NeoForge and has files for 1.21.1 only, under the GNU Lesser General Public License v3.0 or later. It is not open source, and the source code is not released yet. A server running it needs every connecting player to have it too. Its first file, 1.0, was published on 2025-08-05.
Key features
Pointer and memory blocks
A pointer block moves across memory cells and is shown on screen, while a memory unit holds the value under the pointer.
Loop and branch commands
Loop markers skip or repeat code depending on whether the current cell holds 0, which lets programs run with branches.
Input and output
Output prints a cell's value as an ASCII character. Reading a character into a cell is listed as not yet implemented.
Chance, boolean and color blocks
A chance block gives random values from 1 to 6 and from -1 to -6, a boolean unit toggles between true and false, and a color unit adjusts red, green or blue.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: The mod suits players who enjoy programming puzzles and want to experiment with the BrainF\*\*k language inside a world. Because both the server and every player need it, it fits multiplayer worlds where everyone runs the same build.
Questions
Does the server need BrainF\*\*k In Minecraft?
Which loader does BrainF\*\*k In Minecraft use?
Can programs read keyboard input yet?
In the catalog
BrainF**k In Minecraft is one of 8,499 Technology mods on ModsFinder, and one of 3,557 Technology mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
: Move the pointer left and right across memory. In this mod, this is visualized as the pointer block moving left or right. + and -: Increment or decrement the value at the current memory cell.
Official listing
- Modrinth page
- modrinth.com/mod/brainfk-in-minecraft
- Owner
- Sihuai2412
- Published
- 2025-08-05
- Updated on Modrinth
- 2025-08-05
- Facts verified
- 2026-10-15