VRChat
VRChat is using the Unity with technologies like Discord Game SDK, Epic Online Services, Oculus XR Plugin, OpenVR and Unity Burst Compiler.
VRChat is a massively multiplayer virtual reality game developed and published by VRChat Inc. It was originally released for Microsoft Windows on 1 February 2017. The game is built on the Unity game engine. It can be played on the Oculus Rift, HTC Vive, and Valve Index VR headsets.
Engine & Technologies
Unity
Unity is a cross-platform game engine developed by Unity Technologies, first announced and released in June 2005 at Apple Inc.'s Worldwide Developers Conference as an OS X-exclusive game engine. Unity is a powerful game engine used for indie and professional game development. It has a wide range of tools and features, making it a great choice for creating and developing games.
Discord Game SDK
Integration SDK for Discord rich presence, voice chat, and social features in games.
Epic Online Services
Cross-platform backend services for multiplayer, matchmaking, achievements, and social features.
Oculus XR Plugin
Unity plugin for Oculus/Meta Quest VR headset integration and features.
OpenVR
API for virtual reality hardware access, providing a common interface for VR headsets and controllers.
Unity Burst Compiler
High-performance compiler that translates IL/.NET bytecode to optimized native code for Unity games.