MarkAshley wrote:
I don't think there is a playable demo but there are some watchable demos that are rendered in realtime using the quake engine so it should give you some idea of how it will perform.
Actually a playable demo of Quake 2 exists, I've played and finished it on my AmigaOne running the Linux' version of the Quake 2 engine. It should be downloadable on at least id's website.
Varthall