I watched another amazing tutorial from Entagma on Custom Particles with VEX and lost my self in the amazing motions you can get from such simple concepts.
I introduced a parameter to control an attraction force at the geometric center of all particle positions, an initial acceleration and also some simple controls for an attack force on the heaviest particle that will try to "eat" the second heaviest or the lightest particle.
Beware of hypnotic properties of this kind of project, you really lose track of time just playing around with different values :)
All rendered with DOF in the amazing lightning fast Redshift. It's so fast :)
Sound also by CGMonkeyKing.