True, dynamic, runtime metaballs for your game.
Add Liquid, Blobs, Mercury, Goo or any other blobby effect with Bleep Bloop's True Metaballs.
This asset gives you full code, and a working example of metaballs floating around and interacting within a volume. If your project requires the balls to leave the simulation volume, that's no problem either, as this can be set up to handle the transition gracefully.
This is a true metaball solution. Runtime, dynamic, and scaleable to your performance requirements.