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Minecraft (Craft)


A simple Minecraft clone written in C using modern OpenGL (shaders).


  • Simple but nice looking terrain generation using simplex noise.
  • Biomes
  • Water
  • More than 20 types of blocks and more can be added easily.
  • Supports plants (grass, flowers, trees, etc.) and transparency (glass).
  • Simple clouds in the sky (they don't move).
  • Day / night cycles and a textured sky dome.
  • More sophisticated sunrise/sunset color blending
  • Ambient occlusion for basic shading of blocks.
  • World changes persisted in a sqlite3 database.
  • Configurable draw distance. The draw distance has a big effect on the framerate, a draw distance of 1 or 2 can make this core playable even on very lightweight computers.
  • Configurable field of view.
  • Gamepad support (including analog stick support) configurable analog sensitivity and deadzones, preliminary mouse and keyboard support.
  • Configurable resolutions, up to 4K.
  • A ‘Jumping Flash’ mode that allows you to jump infinitely into the air all while the camera faces downwards.

The Craft core has been authored by

  • Michael Fogleman

The Craft core is licensed under

A summary of the licenses behind RetroArch and its cores can be found here.


  • OpenGL or OpenGL ES

How to start the Craft core:

  • To start the Craft core, go to RetroArch's main menu screen. Select 'Load Core', then 'Craft'.

  • Now, select 'Start Core'.

The content should now start running!


Frontend-level settings or features that the Craft core respects.

Feature Supported
Core Options
RetroArch Cheats
Native Cheats
Disk Control
Crop Overscan


The Craft core's library name is 'Craft'

The Craft core saves/loads to/from these directories.

Frontend's System directory

File Description
craft.db World data

Geometry and timing

  • The Craft core's core provided FPS is 60.0
  • The Craft core's core provided sample rate is 48000 Hz
  • The Craft core's base width is 640
  • The Craft core's base height is 480
  • The Craft core's max width is 640
  • The Craft core's max height is 480
  • The Craft core's core provided aspect ratio is 16/9

Core options

The Craft core has the following option(s) that can be tweaked from the core options menu. The default setting is bolded.

Settings with (Restart) means that core has to be closed for the new setting to be applied on next launch.

  • Resolution (restart) [craft_resolution] (640x480|320x200|640x400|960x600|1280x800|1600x1000|1920x1200|2240x1400|2560x1600|2880x1800|3200x2000|3520x2200|3840x2400|7680x4320|15360x8640|16000x9000|320x240|320x480|360x200|360x240|360x400|360x480|400x224|480x272|512x224|512x240|512x384|512x512|640x224|640x240|640x448|720x576|800x480|800x600|960x720|1024x768|1280x720|1366x768|1600x900|1920x1080|2048x2048|4096x4096)

    Configure the resolution.

Resolution - 320x240

Resolution - 1920x1080

  • Show info text [craft_show_info_text] (disabled|enabled)

    Show game information in the upper left corner of Craft.

Show info text - Off

Show info text - On

  • Jumping Flash mode (Off/On):

    Enabling this allows you to jump infinitely into the air all while the camera faces downwards.

  • Field of view [craft_field_of_view] (65 to 150 in increments of 5)

    Configure the field of view.

Field of view - 65

Field of view - 125

  • Draw distance [craft_draw_distance] (1 to 32 in increments of 1. 10 is default)

    Configure the draw distance.

Draw distance - 10

Draw distance - 32

  • Inverted aim [craft_inverted_aim] (disabled|enabled)

    Invert up and down crosshair aiming controls for the RetroPad and the RetroMouse.

  • Right analog sensitivity [craft_analog_sensitivity] (0.0150 to 0.0500 in increments of 0.0025)

    Modify the RetroPad right analog stick's sensitivity.

  • Analog deadzone size [craft_deadzone_radius] (0.010 to 0.200 in increments of 0.005)

    Modify RetroPad analog sticks' deadzone.


RetroPad Inputs Craft Inputs
Destroy block
Zoom out
Move forwards
Move backwards
Move crosshair left
Move crosshair right
Next block
Place block
Move left
Move right
Move crosshair up
Move crosshair down
X Move left/right
Y Move up/down
X Move crosshair left/right
Y Move crosshair up.down


RetroKeyboard Inputs Craft Inputs
Keyboard Up Move forwards
Keyboard Down Move backwards
Keyboard Right Move crosshair left
Keyboard Left Move crosshair right
Keyboard Right Shift Zoom out


RetroMouse Inputs Craft Inputs
Mouse Cursor Move crosshair
Mouse 1 Destroy block
Mouse 2 Place block
Mouse 3 Copy block
Wheel Up Previous block
Wheel Down Next block