"The currently available version is Eschalon Book I,
and you can download the demo from the official website. To start
the game, uncompress the tarball and run it as ./Eschalon Book I
Demo from a terminal or just double-click the Eschalon Book I Demo
"The game uses OpenGL and a native resolution of 800x600, which
is also the only resolution available. It can be run in either
windowed mode or fullscreen."