Virtual universe which lets you explore & analyze planetary datasets
Google Cardboard XR plugin for Unity
Scripting platform, modding framework and VR support for RE Engine
API and runtime that allows access to VR hardware
A toolkit that helps developing/prototyping VR apps
Lua Virtual Reality engine
An easy-to-use mixed reality library for building VR applications
A web framework for building virtual reality experiences
Web framework for building multi-user virtual reality experiences
Framework for creating human behaviour experiments in Unity
A toolbox for easily setting up VRChat avatars in Unity
Framework to facilitate communication in the Unity game engine
Powerful development framework for creating virtually anything
Multi-engine plugin to specify agents with reinforcement learning
Set of comprehensive computer vision & machine intelligence libraries
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
VR Adrix Java Works - Paged Lists - Action-Entity Model ...
virtual reality authoring toolkit created by artists, for artists
Paged Lists & Iterators GXS for C++ Sources by Vincent Radio {Adrix.NT
Cross platform Virtual Reality authoring and playback
VR Paged List for C# and more
VR Mosaic - C++ Builder Applet v.2.5
Full featured MUD server with all the trimmings.
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
HARFANG 3D source code public repository