Browsers are quite capable with HTML5 and WebGL these days. We've built an entire MMO with hundreds of thousands of lines of hard-coded Javascript that runs fan

Browsers are quite capable with HTML5 and WebGL these days. We've built an entire MMO with hundreds of thousands of lines of hard-coded Javascript that runs fantastically for tens of thousands of users (most players don't even know it isn't flash). You can take a look at it at http://casinorpg.com http://casinorpg.com.