Defold particles are in 3D space, e.g. emitted particles are moving in 3D, but particles themselves use sprites only, and I guess it’s a 3D “cloud” model for the dust that you want.
Nevertheless, for such a simple and stylized effect 3-5 clouds might be enough, I would make them in script via factory - create randomly game objects with 3D models of such clouds and animate them to scale down over time and then delete
I do appreciate that you share the progress of your work here, and it’s amazing that you also share the source code! But I have some concern about sharing a prebuilt executable:
We do not have a rule on the forum to not upload executables, but it is not a good practice for anyone to download executables from “unknown sources” like this, and since you share the source code anyone can build the project on their own. If you want to share playable builds of your game I would recommend that you make a web build and share a link instead. Also, if everyone starts uploading incremental builds of their project like this the we’d quickly need to expand disk space to accommodate for all of the uploads.
There is nice tutorial by Asatte to build and upload your game on itch (after setting it up once, you can reupload your HTML5 build and everyone can check without installing anything, perfect for playtests, because otherwise people might be like, meh, if I need to download it, I don’t want to)