[WheelsAtLarge]

It's hard to finance a browser engine. And you can't just write a quick one. It takes lots of resources.

There's also the difficulty of getting your development money back given the dominance of the two big ones, chrome, and Firefox.

It took google, with all of its resources, years to write chrome to give an example of how hard it is to write one.

Writing a game engine is much easier in getting resources and payback.