A simple voxel terrain generator using entities. One entity per voxel. The scene has 10K entities. Definitely not the best way to do this but it looks nice!
An implementation of boids using ECS for Unity 2020
1000 boids implementing the following behaviours:
With a procedural animation and trails implemented using ECS. There are 28K entities being updated every frame getting ~100 FPS and ~80 FPS in VR. See the steamvr branch for a VR implementation
Try doing that with MonoBehaviours! Source code here: https://github.com/skooter500/ECS2020