HTML/CSS/JS vs .Net Framework: Performance

I think you have to look at who is going to be playing your games, the "modal users," as to whether it's performance is slower/slow/regular/fast/faster: the kind of hardware (particularly GPU if your games are graphic intensive, do 3-d rendering, etc.) the user has is may make a lot of difference.

And, if you use a "game-engine" of some kind in C#, the extent to which it takes full advantage of the GPU comes into play.

So, if your game places a huge load on CPU/GPU, your users' "average" hardware may become a limiting factor.

But, it's certainly a whole new "ball-game" for high-performance graphic-rich apps using the HMTL5 stack compared to what was possible in the browser just a few years ago.

Did you see this web-app mentioned on CodeProject recently: [^] ?

That's done with OpenGL and the HMTL/JavaScript stack, and I find that pretty mind-blowing.

HTML (or its 5th version) is just a markup language, and is used to render the objects on the screen only. Of course there is no performance problem for writing the applications in HTML, because on the C# side you're also going to use the XAML markup to build up the UI for the objects. So the performance issue would be raised on the programming language side, such as on one hand there is C# and on the very second hand it is JavaScript.

If you're talking about engines that let you write applications in HTML, CSS and JavaScript, that might let you build game applications for your users too. I have myself never tried Apache framework so I won't try to blame them for being bad. Also, in Windows API, web development languages such as HTML5, CSS and JavaScript are also included so you can write applications in HTML and run them using JavaScript and after compilation they will run as Windows applications on .NET framework.

As far as gaming is concerned, if you're going to create a game, although HTML and JavaScript is capable of creating game platforms for you and you will be able to create games using OpenGL or other JavaScript libraries, that let you create offline games which run in browser, or since I talked about Apache they can run as a software application too, but I would still like to suggest that you stick to C#. Did you try out Unity? Unity is a gaming engine which lets you create games just by giving away an object for your game (player) and by writing the code for what it is going to do. Same code of yours, will be re-used for other platforms too. So that means, using C# you're not just going to stick to .NET framework or Windows OS but other platforms like, mobiles such as Android, iOS and others too. C# is better and you will find a lot of more resources that are going to help you out in C#, but you might find yourself alone for JavaScript. Game programming for offline applications using JavaScript is not being used widely although is going on, or at most it is being used in creating games for browser, still Silverlight and other tools are used for those platforms too.