Wonderholme, a 10-player co-op adventure, is a lethally whimsical castle. Channelworks is a series of aqueducts maintained by automatons (basically the sewers) deep beneath the Veritas District is explorable by groups of three. Kezzel's Gorge is a tower defense scenario built for seven participants. And Shattered Fleet, a five-player BAM beatdown, takes place on a ship run aground off the Jagged Coast.
Can't wait until the 10th to see what's in store? Then check out screenshots of these new dungeons in the gallery below and watch a teaser trailer for each, one right after another, after the break.
[Source: En Masse press release]
(There are four videos -- watch them right here back to back!)