When comparing Wave vs FNA, the Slant community recommends Wave for most people. In the question“What are the best 2D C# game engines?” Wave is ranked 7th while FNA is ranked 8th. The most important reason people chose Wave is:
In addition to online [API documentation](http://waveengine.net/Engine/Documentation), the Wave Engine team provides [tutorials](http://www.indiedb.com/engines/wave-engine/tutorials) via IndieDB, plus [sample projects](https://github.com/WaveEngine/Samples) and "[QuickStarters](https://github.com/WaveEngine/QuickStarters)" via GitHub.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Extensive learning material
In addition to online API documentation, the Wave Engine team provides tutorials via IndieDB, plus sample projects and "QuickStarters" via GitHub.
Pro Supports coding in C#, F# and Visual Basic
Wave Engine explicitly supports all three core .Net Platform languages.
Pro Oculus Rift support
The Wave Engine team provides an official, open-source Oculus Rift extension via GitHub.
Pro Many components are open source
Several core components and official extensions of the Wave Engine are publicly hosted on GitHub.
Pro Performance
FNA is incredibly performant on desktop platforms.
Pro Near-exact reimplementation of XNA 4
Pro Rapidly evolving
With a very active development team, FNA has support for OpenGL and Metal, with Direct3D 11 and Vulkan support on the way, as well as more platform support.
Pro Barely contains bugs
Pro Proven tool
FNA has been used in a multitude of titles, ranging from Mercenary Kings: Reloaded, Terraria and Escape Goat, all the way to Celeste, Streets of Rage 4 and Fez.
Pro MonoGame-compatible
FNA projects are very compatible with MonoGame.
Cons
Con Mandatory splash screen
Games and applications made with Wave Engine must display a splash screen advertising it. No splash-free license option is available.
Con Not many tutorials available
Con Outdated UI
The UI looks like it is from Windows XP days. A refresh is much needed.
Con Not exactly a "game engine" by definition
It provides you with everything you need to make a game engine, but isn't one in itself.