Unity3D is a free (for non-commercial use) game development tool, available on the Windows 64-bit platform (Windows 7 through 10) and the Mac (OS X 10.9+). This software provides developers with tools to model terrains and develop digital environments that can be exported to a great variety of platforms.
Unity3D comes with an asset store from which models and extensions can be downloaded and added to the platform. Alternatively, models can be easily added and imported from third-party software development suites.
Tutorial for Hello World
The Hello World tutorial below can be done with very little effort. To create "Hello World" in Unity, follow the steps in this "Hello World Unity" Tutorial.
Minimum/Recommended System Requirements
SSE2 instruction set support;
Windows 7 SP1+, 8, 10, 64-bit versions only; Mac OS X 10.9+
Graphics card with DX10 (shader model 4.0) capabilities
Intel Core i7 7820X 8 Core 3.6GHz (4.3/4.5GHz Turbo)
NVIDIA GeForce GTX 1080 8GB
32GB of RAM
Accessibility: The estimated time for someone to create Hello World in VR
Beginner: no experience with Unity or similar software | < 30 min.
Intermediate: some experience with Unity or similar software | < 15 min.
Advanced: experienced with Unity and other software | < 10 min.
Expert: highly experienced Unity user | < 5 min.
High: Unity is a powerful rendering engine for three dimensional models at various levels. Builds on the fly and allows outputting to various file-formats when building is done. Also provides possibilities to integrate sound and SteamVR support.
Other - not intended for science visualization; good for importing assets but not for creating assets or creating art.
Overall, Unity3D is extremely powerful and versatile for the creation of digital games, both in 2D and 3D. It is relatively intuitive and does not require a steep learning curve to use.
Unity3D: getting to know Unity3D
Unity Tutorial #3: 'Hello Unity World'; a simple 'Hello World' tutorial to get to know the basics of the GUI and principles of Unity.
Unity Tutorial #6: Teleporting in VR: A tutorial showing how to implement a popular way to move in VR experiences.
By Duncan, Jacob, Brandon, Jen & Martin