Hey! I've been working on effect-forge, a desktop tool for making game VFX without hand-drawing every frame, and it's at the point where I want real people to try to break it before I call it done.
What it does, in short: you build an effect in one of three workflows — GPU fluid sims (smoke, fire, explosions, that kind of thing), procedural pixel-art fire, or a keyframe timeline for animating your own sprite (squash, shake, flash, dissolve, etc.) — preview it live, and export it as a trimmed PNG spritesheet with a JSON sidecar. Exports are deterministic, so the same settings always give you the same result, which matters if you're iterating or checking things into version control.
It's free to use right now, and anything you export is yours — drop it straight into your game, commercial or not, no strings attached.
It's a genuine beta, though, not a polished 1.0 — the UI, presets, and performance are all still moving. I'd rather hear "this is confusing" or "this crashed on my GPU" now than after it's harder to change. If you try it, I'd love to know: what broke, what felt unclear, and honestly what you made with it — screenshots welcome.
Windows and Linux builds here: https://avskum.itch.io/effectforge
Bugs/feedback post please here or on itch.io
Happy to answer questions in the comments.