v2026.04.02/emulators/cruzes.yml

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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