Download BYOND
Can host games on multiple platforms. Windows is required to play.

You play BYOND games on your Windows PC, using the free BYOND software. Once BYOND is installed, all you have to do is find a game to play. There are two ways to play: Either download a game and play it by yourself, or join a live game with other BYOND players who are online.

Players on BYOND have the option of creating a free user account, which gives them an identity other than "Guest" to use online. You can do that now, or at any time you like later on.