https://blog.native-instruments.com/5-free-sci-fi-sfx-reaktor/
Here are five of our favorite sci-fi sound effects generators –whether they be Blocks or full ensembles – from the REAKTOR User Library, all of them bristling with the potent possibility and immense generative power you need to take your tracks extra-terrestrial. Read on for a brisk breakdown of each essential ensemble, and click the embedded links to download them for free.