Engine 4

Forum thread | Documentation
Engine4 is a library to unlock game creation to a higher dimension. The library does this by abstracting and manipulating 4D objects before being rendered as a 3D object.
Engine4 has been packed with many feature that satisfies most features that a game engines have, starting from its modularized rendering system until custom physics engine, all working in four-dimension. Most methods and classes inside the library also has been code-commented and documented to HTML pages.
Besides its features, Engine4 does not contain any compiled library or platform-specific code, meaning you can create a four-dimensional game to any platform. The internal code also have been kept to be optimized for run-time usage as performance improves over time when each update being released.
By including this library to your project, you will be able to design a four-dimensional scene and define custom shapes via procedural model creation. You will also can manipulate and transform 4D objects in runtime with physics simulation or any game logic you've created to meet your project goals.
Check our screenshots to see what this library are capable. Optionally you can freely access the online documentation by clicking the link above. Forum threads or email support can be used for reporting issues or feedback.
Important note: This package has lived for over five years, but it's expected not have any further development. It's still works and I see still fit and valuable to those who want to explore four dimensional gaming in Unity.