If you are a student or educator at a recognized institution, Insydium offers heavily discounted educational licenses. This allows you to learn the industry-standard software safely at a fraction of the commercial price. Free Alternatives to X-Particles in C4D
The table below outlines the free trial options mentioned in the search results:
Create voxel-based smoke, fire, and explosion simulations that interact dynamically with your particle grids.
How to use the included in newer versions of Cinema 4D.