Salutations! Here to meet your geological needs is Necro’s Rock Box! For the rock bottom (groan) price of $2.99, you can have this collection of stones, pictured here just hanging out:
The pack comes with 10 rock meshes and one master material. You can swap out the detail diffuse/normal (4 are provided):
The material allows you to adjust the tint of various rock features (cavities for example) independently, allowing you to come up with a wealth of variation! And finally, an optional “lichen” layer can be painted onto the meshes using the red vertex paint channel, allowing for even more customization.
Note: the rock pack comes in a UE4 project. To move to your own project, simply open the NecrosRockPack project and migrate the NecrosRockPack folder and all its contents to your projects Contents folder.