Welcome to the core package. Simulo adds this package to your packages and replaces it every time you change Simulo versions (we check the cache/last_version.txt file), or when the packages directory is created.
All of the built-in Simulo tools are defined here!
You can prevent Simulo from adding/replacing core by setting replace_core to false in your config.toml.
nikolass.avifor skeleton sprites- Interrobang for amazing improvements to bolt and hinge