It's sometimes easy to forget that not everyone has a PC designed for playing games, and (until recently) many of the big Battle Royale shooters have required pretty beefy hardware in order to get the most out of them. Enter ZombsRoyale.io, distilling the absurdly popular genre down to its purest elements to present them in free, browser-based form. ZombsRoyale.io even follows in the footsteps of…