This will work in Blender 4.4 or later.

(Blender 4.3 technically works, but the panel UI may glitch.)

This is a geometry node modifier, not an add-on.

Modifier settings:

Emitter

• Spawning - Particle spawn rate
• Particle Info - Lifetime and size
• Velocity - Initial velocity
• Rotation - Initial rotation
• Children - Spawn particles from other systems

Movement

• Velocity - Gravity, wind, and drag
• Collision - Mesh and self collisions
• Rotation - Rotational velocity
• Forces - Noise and experimental GN force fields

Visual

• Instance - Instance object on particles
• Trail - Trail particles with mesh ribbon

All used attributes are available in the shader editor using the Attribute node. Just be sure to check whether it should be set to Instancer or Geometry mode.

Attribute list:

Age

Delta Time

Hit Count

Hit Distance

Hit Normal

Is Hit

Life

Lifetime

Mass

Random

Rot Velocity

Rotation

Size

Trail Age

Trail Lifetime

Trail UV

Velocity

Will Delete