I just released this texture pack of Sci-Fi textures https://www.unrealengine.com/marketplace/scif-fi-texture-pack
The pack contains 138 instanced materials, 7 master materials, 281 textures. Comes with a few modular models and props to get you going.
https://www.youtube.com/watch?v=OJl-4w6X_Lc Here is a sample video
Please enjoy, and if you have any feedback, please let me know!