You can download OptFlux 3.2.4 from our software library for free. This download was checked by our built-in antivirus and was rated as virus free. The program is included in Education Tools. The actual developer of the free program is SilicoLife.
From the developer:
The OptFlux application includes a number of tools to support in silico metabolic engineering. The application allows the user to load a genome-scale model of a given organism. This will serve as the basis to simulate the wild type and mutants, original strain with a set of selected gene deletions.
You may want to check out more software, such as SatCalc, MathMatic or MemBrain, which might be related to OptFlux.