Moai vs Flax Engine

The Moai SDK Forum is active and users will go to great extents to answer queries, post code snippets, beta test, and even purchase and give feedback on each others' games.

Although the Moai SDK is very advanced and uses complicated features, the documentation wiki thoroughly and clearly explains how to use these features, such as the Moai Cloud(a service that provides web services for your game), and multiple ways to build from source.

Can be used for free until you hit a rather high revenue cap, at which point you have to pay royalties.

C# scripting is really well made, comparable to Unity, but without any of the legacy cruft.

Supports most platforms, including Windows, Linux, Android, Nintendo Switch, ...

Has a very modern, performant and beautiful rendering backend.

The entire core is written in C++ and it supports writing game code in C++. The interoperability between C# and C++ is also nothing to scoff at.

Works with any text editor and comes with proper support for Visual Studio, VSCode and Jetbrains Rider.

The documentation is well written, up to date and accepts improvements from the community.

The editor is both powerful and simple. My favourite part is how easy it is to extend the editor with custom magic.

The entire source of the engine is available on Github, though not under an open source license.