OCC is an unofficial open source engine reimplementation of the game trilogy Crystal Caves.
Download binaries and project info at itch.io
This repository includes the shareware version of Crystal Caves. To play the full, retail version, you can copy over the data files or purchase them at Steam or GoG.
Current state of OCC:
Currently the engine can:
- Load sprite, item and level data.
- Render a level that is selected at compile time.
- Render items that, both behind and in front of the player, as well as animated items.
- Move the player around, jumping, colliding with solid items and moving platforms.
Features that are missing:
- Main menu including starting a new game and loading a saved game.
- Exiting levels.
- Items.
- Enemies.
- (and much more).
OCC is built using C++17 and requires external libraries: SDL 2.0, SDL_image and SDL_mixer and . SDL2 must be installed and available in /usr/include/SDL2
. Additionally the build system cmake
must be installed.
Steps to compile (Linux, macOS):
git clone --recursive https://github.com/gurka/OpenCrystalCaves.git
cd OpenCrystalCaves
mkdir debug
cmake -Bdebug -DCMAKE_BUILD_TYPE=debug occ
cd debug
make
The binary will be available at OpenCrystalCaves/build/occ
Or in Windows (with vcpkg):
# In vcpkg dir
./vcpkg install --triplet x64-windows sdl2 --recurse
# In your projects dir
git clone --recursive https://github.com/gurka/OpenCrystalCaves.git
cd OpenCrystalCaves
mkdir debug
cmake -Bdebug -DCMAKE_BUILD_TYPE=debug -DCMAKE_TOOLCHAIN_FILE=C:/path/to/vcpkg/scripts/buildsystems/vcpkg.cmake ../occ -A x64
The Visual Studio project will be available at OpenCrystalCaves/debug
OCC requires data files from the original Crystal Caves (any episode). Either install it via Steam or GoG, or copy the game data to the media
folder in the occ package (such as CC1.GFX
).