- Open Poiesis β collection of tools and libraries for developing applications for systems thinking, dynamical systems modelling and simulation.
- PoieticCore: Swift library for systems modelling.
- PoieticFlows β Stock and Flow domain model for PoieticCore library. Includes the Poietic command-line tool for working with models and running simulations.
- Cubes β lightweight Python OLAP library and server (not maintained)
- Expressions β arithmetic expression parsing and conversion (not maintained)
- Bubbles β Python ETL library (not maintained)
- StepTalk β Smalltalk Scripting for Objective C and GNUstep
- Sepro18 β experimental toolkit for biochemistry inspired graph-based simulation