I'm pretty sure it'll run on a graphic calculator too. Albion Online is a medieval sandbox MMO that's claiming to be the first cross-platform MMO.

Exactly what platforms? Well, you can run Albion Online on Windows, Linux, iOS, Android and Mac. The video below shows different

Albion Online is a free-to-play MMO that offers complete character customization by letting create the job class of your dreams. There's also a player driven economy and territory based Player Vs Player.

Albion Online is currently in alpha and is expected later this year.