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Unai is both a VR headset and a virtual world designed specifically for it. The hardware and software are being built together to make spending time with people in VR feel the same as in real life.
Unai
A VR headset & world designed for real social interactions
Relativty, an Open-source VR headset with a 2K 120FPS Display, SteamVR supports, and experimental room-scaling. You can build it for $200.
Relativty
An open-source VR headset for $200