v0.7.2 of doldrusidus sees a rewrite of the default ship program from uxntal to C and adds particle effects.
See the upscaled demo for some examples of current particle effects.
devlog at the bottom of the page: http://wreckage.link/doldrusidus.html
@manifoldslug @lynn whoa this looks super cool!!! is the drawing done in uxn?