This is a paid asset, but now you can download HQ Realistic explosions Free.
Detail this asset from Unity Store: Original Link
HQ Realistic explosions v2.0.0 (Latest version)
HQ Realistic explosions v1.1.2
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!
PC/Consoles/Mobiles/Web/VR supported.
URP and HDRP supported from Unity 2019.2.
Support package for HDRP and URP here!
Demo for PC
Video and screenshots of the effects were made using post-effect “Bloom” from free Post Processing Stack by Unity Technologies!
Contact me if you have any problems or questions.
Check my new asset with full 3D explosions!