XAML.io adds “Migrate from WPF”: run an existing WPF application on the web

Userware today released version 0.8 of XAML.io, the free web-based .NET IDE, adding Migrate from WPF: free, in-browser tools ...
GitHub

tutorial-open-project-from-repo.md

In this tutorial, you use Visual Studio to connect to a repository, or repo, for the first time, clone it, and then open a project from it. In this tutorial, you learn how to: ...

Now You Can Play Half-Life 2 in a Web Browser

Half-Life 2 is one of the greatest videogames in history, a technological tour de force at the time of its release in 2004.
Tom's Hardware on MSN

Half-Life 2 can now run in your browser at over 100 FPS with save states & console support

It's not Half-Life 3 but it's something.