Systems are everywhere. We see them in everyday life, and in turn, this is a major part of what we develop in our games. Systemic is when these systems start interacting with and influencing each other, with the hopes of developing interesting and possible emergent gameplay. Developing systemic gameplay is an interesting challenge for both programmers and game designers. This talk will discuss my approach to designing game systems and their interactions together, and how to go from a simple framework to finding the fun in your gameplay. What works? What doesn’t? How to find mechanics that will be interesting to a diverse audience?