Download Greeble Kit R2 FREE Unity. 

Greeble Kit is the ultimate toolkit for creating sci-fi worlds in Unity! Create detailed environments, machinery, and just about anything you can imagine!
Release 2 adds carefully calibrated physically-based materials and textures, as well as new example scenes and prefabs.

NEW in R2!
• Full PBR support
• 26 new 4k textures
• 3 new example scenes
• 2 new prefabs: Greeble Gun, and Greeble Bot

Features
•Over 100 prefabs:
35 small
33 medium
33 large