Portal Particle Effect | VFX Particles | Unity Asset Store
2D Circle Rings Effect | Particles/Effects | Unity Asset Store
You can use Unity's particle system as the basis for your targeting/seeking mechanics using just the built-in Force Field component, with ZERO programming to start with. ✨🎯 : r/Unity3D
The Unity Particle System Update: Features, Tips and Beyond! - YouTube
Unity 5 Tutorial: Particle Systems #10 Circle & Helix with Code - YouTube
Optimizing Particle Effects for Mobile Applications - Unity Learn