Originally known as Muerte Machine, this grandiose project was abandoned before being completed (read the author's thoughts on this at the Big House site). It's still an amazing piece of work - it plays more like a movie than a Marathon game. Artwork is stupendous, weapons are imaginative... this is as much a gallery of what CAN be done with Marathon as it is a game to be played.
Jesse Simko, creator of the eagerly awaited Muerte Machine, has uploaded this nice demonstration showing how to remove half of the warping effect which happens when a player changes levels. (He's eliminated the warp out effect from the start level... but not the warp in effect on the end level. He does, however, give some suggestions for diminishing the latter effect.) This should be very useful to anyone creating levels based in universes where teleporting makes little sense (Earthlike scenarios, for example), or to someone who's looking for a way to get around the 1024 poly limit on a single level. (You won't get completely around it... but if the warp-in effect can be covered up, you can certainly fake it pretty well.) Very nice!