Gaia eXtensions (GX) are integration’s between Gaia and select Third Party assets.

Gaia eXtensions range from art assets like terrain textures and 3D models, to shaders and tools
which improve the visual quality of your scene.

• Aura 2
• AQUAS Water Set
• Backwoods Village Stamps
• Coastal Areas – Terrain Stamps
• Compass Navigator Pro
• CountrySide Pack
• Desert Areas – Terrain Stamps
• Distingo
• Dynamic Fog & Mist
• Enviro – Sky And Weather
• Fog Volume 3
• Horizon Based Ambient Occlusion
• Highlands – Terrain Stamps
• Islands – Terrain Stamps
• ProStamps for Gaia
• Suimono Water System
• SpeedTree Desktop Ground Cover
• SpeedTree Desktop Tree Package
• Tenkoku Dynamic Sky
• uConstruct – Runtime Building System
• Volumetric Fog & Mist
• ITK VR Character Controller
• Wetlands – Terrain Stamps

If an asset has been mentioned here then it has been certified GAIA COMPATIBLE and will be a quality asset. Anything not in this list that says it is Gaia Compatible on the Unity Asset store has not been approved by Procedural Worlds and your 'mileage may vary'.