I'm looking to create an interactable VR world of my low poly scene.
How would I achieve lighting similar to this in Unity?
I have found this on the Unity store. Any help would be appreciated!
Also known as volumetric lighting =) You can find countless assets for achieving this, a lot of which are free and of high quality.
The asset you linked is very expensive and if it is what you want to go for then great, but the price is set according to the amount of low poly 3D environments, textures, shaders, prefabs, demo scenes etc... not for the lighting.
If you only need volumetric lighting I recommend this free and great asset that will get you set instantly : Volumetric Lighting Asset
It has great documentation but you can always follow this tutorial if you want a little extra visual help to get started : YouTube Tutorial
Otherwise feel free to browse the asset store!