So what's There Came an Echo about, then? Well, it takes place in the near future, and allows you to order a small, Syndicate-style group of soldiers (including Crusher's Earth-based alter ego Wil Wheaton) around various hand-drawn isometric maps. There's a set of pre-defined voice commands - e.g. "open fire", "[unit name], head to [map objective]" - which are assembled from a vocab sheet of 500 words. The options are fairly complex - individual mines can be detonated using voice commands, and you can tell automated turrets to attack specific enemy units.