Effekseer
Effekseer supports frame-by-frame, skeletal, motion-capture, or real-time effects work with outputs suitable for common game pipelines.
Why use it
Animation and technical-art teams can use it to author skill, hit, and environmental particles reusable across engines.
Where it fits
Use art, animation, audio, levels, and narrative to make the game easy to read and its world convincing.
What to check
Runtime versions and rendering features are not identical across engines; Production delivery still requires checks for frame rate, rigs, alpha, loop seams, and engine compatibility.