emulator: Cruzes
type: libretro
source: "https://github.com/libretro/libretro-samples/tree/master/tests/cruzes"
profiled_date: "2026-03-18"
core_version: "v1.0"
display_name: "Cruzes"
cores:
  - cruzes
systems:
  - game

notes: |
  Cruzes is an unfinished Picross puzzle game implemented as a libretro core,
  part of the libretro-samples repository. It is not an emulator -- it is a
  standalone game that runs directly within RetroArch.

  The core sets supports_no_game to true (cruzes.c:772) and valid_extensions
  to an empty string (cruzes.c:749). The puzzle grid is hardcoded in
  retro_init (cruzes.c:706-717) via a string literal passed to load_challenge.

  retro_load_game (cruzes.c:728-732) only sets the pixel format to RGB565
  and returns true. It never reads from the game_info pointer, never calls
  RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, and never opens any file from disk.

  The font data (Carlito-Regular.ttf) is converted to C header files at build
  time by the ttf2c tool (font10.h, font16.h, font24.h) and compiled in.

  No external BIOS, firmware, or system files are needed.

files: []

analysis:
  file_loading: none
  system_directory_used: false
  supports_no_game: true
  need_fullpath: false
  is_experimental: true
  license: 2-clause BSD
  author: Higor Euripedes