The constantly rising complexity of distributed systems and an increasing demand for non-functional requirements lead to approaches featuring self-organising characteristics. Developing these systems is challenged by their hardly predictable dynamics and emergent phenomena and requires therefore the incorporation of simulation techniques. In doing so, not all needed development activities can be realised by just one software application because self-organisation often implies unique settings, goals, and development methods as well as the use of individual code sections. In order to handle such unique environments, this contribution presents a pattern-based concept that incorporates reusable patterns for different development issues of self-organising systems by encapsulating various methods, algorithms, and applications in so called building blocks and combining them in a coherent and hierarchical process.