For free*
Unity is a popular real-time development platform that can be used for free by small organizations, with less than $100k of revenue or funds raised annually. It is sold in a subscription model, plans based on the revenue generated. Unity provides a set of tools, such as assets and plugins, the majority of which can be found on GitHub, Bitbucket, the Unity Asset Store, and other similar platforms. Creators can also develop and sell their assets via Unity Asset Store. Unity is royalty-free to distribute your apps.
3D graphics
This multi-platform environment provides its users with the ability to create games and other experiences in 3D. Three-dimensional graphics can be built with a relatively small amount of work in an easy way without extensive programming knowledge needed thanks to in-built functionalities and tools available. Compared to other engine environments the quality of graphics simply stands out.
Cross-platform
Unity is a very well-made engine that works perfectly on 25+ platforms. It means that you can build your app once only and then deploy it wherever you find commercially justified. Unity is compatible with various operating systems and platforms, such as iOS, Android, Windows, and Linux. It is a perfect solution for mobile apps, AR and VR content, desktop games, or console games.
Compatibility
The engine supports natively C# programming language but you can use other languages as well, such as C++, Python, and Java in the form of libraries. C# is a managed language, which means it does the memory management automatically. As mentioned above, Unity is compatible with various operating systems and devices (such as Chromebook or Mac).
Easy debugging
With a debugger, you can inspect the source code while your game or app is running. No matter which code editor you use (Visual Studio, Jetbrains Rider, etc.), they all provide essential functionalities such as breakpoints and variable inspection. In Unity, managed code debugging works on all platforms apart from WebGL.
ML applications
The resources available in the ML-Agents module reduce the barriers faced by the developers of machine learning applications. Using Unity you can create responsive and intelligent virtual players and other, non-playable characters as well. Machine Learning Agents toolkit you can create intelligent behaviors and rich AI environments.
