Download HQ Realistic explosions Free Unity.
There are 26 different explosions and 4 custom shaders in the asset.
All explosion animations have a resolution from 4096 to 8192 px., but you can reduce the size of pictures. Some of the explosions are completely 3D and some are made using 1 sprite. The effects are very simple to use, just take and drop prefabs into your game!
URP and HDRP supported from Unity 2019.2.
Support package for HDRP and URP here!
Demo for PC