Storm is a programming language platform with a strong focus on extensibility. Storm itself is mostly a framework for creating languages rather than a complete compiler. The framework is designed to make easy to implement languages that can be extended with new syntax and semantics. Of course, Storm comes bundled with a few languages (most importantly Basic Storm), but these are separate from the core and could be implemented as libraries in the future. Since these languages are implemented in Storm, they allow users to create their own syntax extensions as separate libraries. Furthermore, Storm allows languages to interact with each other freely and mostly seamlessly.