You drive trains, all manner of the buggers, around pre-built tracks - or build your own layouts and create your own worlds of make-believe. Trainz 2004 takes that much-loved boyhood/middle-aged pastime of building a model railway in your attic and crams it kicking and screaming into your CPUs. Seriously, is there any non-computerised hobby left to us that hasn't been digitised, virtualityarised and interactivated? (Stop makinguperising words Presley - Ed). What's left then? Virtual Kite Flying? Interactive Frisbee Simulator? No, got it - Hill Walking 2004: The Dales.