What is subspacehunter-sao?

SubspaceHunter-SAO is an open-source game framework and collection of art assets for building VR and mixed-reality action games using Unity. It was originally created in 2022 by Hexin Wang, then aged 22, as a personal project inspired by Sword Art Online, a Japanese animated series set inside a virtual reality massively multiplayer game. The project was released freely and the VR combat videos that circulated on social media in 2022 and 2023 came from this codebase. The framework is designed to run on standalone VR headsets such as Meta Quest. It includes a physics-based melee combat system for swords, a magic combat system, and a gun combat system. It also provides an enemy AI system with nine different behavior patterns that handle things like skill selection, range management, and animation. The project ships with nine level scenes, multiple weapons, and dozens of character and enemy models at different difficulty tiers. The README is written primarily in Chinese and describes the project as both a learning resource and a commercially usable starting point for developers who want to build their own VR action games. It lists what you can learn from studying the project, including how to set up a VR development environment, how to optimize performance and rendering in VR, how to build gesture-based UI systems, and how to handle shadows in mixed-reality scenes where virtual objects share space with the real world. The original art assets and code created by the author are available for commercial use. Some assets based on the Sword Art Online intellectual property are included for learning purposes only and cannot be used commercially. Third-party packages bundled in the project require the user to verify their own licensing terms before commercial use. The project requires Unity version 2021.3.45f1 and targets Android, Quest, and PC VR platforms.