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AltSpace VR Alien Planet World - created in Unity
I created an mystical, alien planet inspired AltSpace VR World in Unity for one of the XRinLXD events a while back, using free and low cost assets (I paid $11 for this pack of pack of low-poly prefabs and meshes) from the Unity Asset Store - you can check it out here:
https://account.altvr.com/worlds/1957441748879802816/spaces/1957447566102626346