WebAssembly is a state-of-the-art technology to run CPU intensive calculation on the browser. So how does it relate to Ruby? Well, for instance, you would like to use it while writing browser games, with Ruby.

In this talk, I will introduce [DXOpal](https://github.com/yhara/dxopal), a game programming framework for Opal (Ruby-to-JavaScript compiler). DXOpal takes advantage of WebAssembly for complex calculations like collision detection.