Minecraft Compiler Collection
Minecraft Compiler Collection (MCC) is a free, open-source toolchain that turns high-level code into Minecraft commands.
What Minecraft Compiler Collection is
Minecraft Compiler Collection (MCC) is a free, open-source toolchain that turns high-level code into Minecraft commands. Its workflow covers compilation, linking, and packing the result as a Minecraft datapack using a datapack definition file. The toolchain includes Command Block Language (CBL), a C++-inspired language, an assembly language with instructions similar to x86, a partial C compiler, Command IR, and a datapack packer. The C compiler implements most language features and includes a preprocessor, but its only built-in type is `int`, stored as a 32-bit signed integer in a scoreboard objective. Command IR can combine CBL, C, assembly, and IR code in one program, and MCC exposes optimization levels 0 and 1. It accepts `.cbl`, `.c`, `.asm`, `.ir`, `.o`, and `.dpd` files. MCC runs on Linux, macOS, the web, and Windows, but it is implemented in Python rather than provided as an executable. Running it requires Python and Lark unless standalone parsers have been generated. The project identifies its license as MIT.
Good
- Links CBL, C, assembly, and IR in one program.
- Packs compiled code into a Minecraft datapack.
- Includes CBL, C, assembly, and Command IR.
- Accepts six listed source and object formats.
Watch out
- Requires Python and Lark unless standalone parsers are generated.
- Not bundled as an executable.
- The C compiler has only one built-in type.
Who it suits
MCC suits Minecraft creators who want to build datapacks from code and are comfortable invoking a Python toolchain. Its C, CBL, assembly, and IR options accommodate several coding approaches.
Verdict
MCC offers a multi-language route from source code to Minecraft datapacks, with linking and optimization in its documented pipeline. Expect to set up and run a Python-based toolchain rather than use a bundled executable.
The facts
Each one read from Minecraft Compiler Collection's own pages, with the date it was checked.
What it does
- Assembler
- The assembler uses a simple assembly language with instructions similar to x86.checked 4 Oct 2026
- CBL
- Command Block Language is a C++-inspired language designed for Minecraft commands.checked 8 Oct 2026
- C compiler
- The partially implemented C compiler supports most language features and includes a preprocessor.checked 8 Oct 2026
- C limits
- The C compiler has one built-in type, int, stored as a 32-bit signed integer in a scoreboard objective.checked 4 Oct 2026
- Datapack output
- The packer creates a Minecraft datapack from compiled code and a datapack definition file.checked 4 Oct 2026
- Datapacks
- The packer uses a datapack definition file to generate a Minecraft datapack.checked 8 Oct 2026
- Demo
- The maker's demo page provides controls to load an example, build, reset, and create a new file.checked 8 Oct 2026
- Dependencies
- Running MCC requires Python and the Lark package, unless standalone parsers have been generated.checked 4 Oct 2026
- Dependency
- Running MCC requires the Lark Python package unless standalone parsers have been generated first.checked 8 Oct 2026
- Executable
- MCC is not bundled as an executable and must be invoked with a Python interpreter.checked 4 Oct 2026
- Input formats
- MCC accepts .cbl, .c, .asm, .ir, .o, and .dpd files.checked 8 Oct 2026
- License
- The repository identifies its license as MIT.checked 8 Oct 2026
- Linking
- Command IR supports linking code written in CBL, C, assembly, and IR into one program.checked 8 Oct 2026
- Mixed-language linking
- Command IR supports linking CBL, C, assembly, and IR code into one program.checked 4 Oct 2026
- Optimization
- The Command IR abstraction enables optimizations, and the command line exposes optimization levels 0 and 1.checked 8 Oct 2026
- Pipeline
- The documented pipeline has compiling, linking, and packing stages.checked 4 Oct 2026
- Purpose
- Minecraft Compiler Collection compiles high-level code into Minecraft commands.checked 8 Oct 2026
- Runtime
- MCC is implemented in Python and is invoked with a Python interpreter; it is not bundled as an executable.checked 8 Oct 2026
- Toolchain
- MCC includes CBL, C, assembly, Command IR, and a datapack packer.checked 8 Oct 2026
The company
- Maker
- The GitHub profile identifies the maker as Simon816 and lists the United Kingdom as location.checked 8 Oct 2026
Where it runs
- Windows setup
- The README instructs Windows users to run the Python commands in the parser build script from the project root.checked 4 Oct 2026
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