Those of you who are familiar with Bungie's Halo may not realize that it was once called "Myth on steroids" by cofounder Jason Jones. Halo's engine was actually based on the Myth engine.
Watch these guys use the Myth II engine to play the first of the trilogy, "Myth ...". Too bad they didn't video the Tutorial.
You can play Myth on the latest Windows, Mac and Linux computers (and as it turns out, tablets). Check it out!