Carl, Donut and Mongo have made it to the fourth level of the dungeon. This time, there are trains. So many trains. The game appears to have constructed a labyrinthine tangle of all of the world’s underground railway systems, and there are new and strange rules to get used to. There are bounties awarded to anyone who kills any of the players in the top ten, which now include both Carl and Donut.
There are all manner of strange monsters on the various trains and platforms, and while the stairways are apparently on clearly announced stations, most of the crawlers are on trains going to much higher stations, and no one seems to know how to get to the end stations and back to the start of the loop. Carl gets an unexpected advantage from a seemingly useless reward box, The Dungeon Anarchist’s Cookbook, where countless previous crawlers have noted down their tips and tricks and useful modifications about the dungeons. He just can’t let anyone know where he’s suddenly getting all of his new and clever ideas.
Just as determined that he won’t allow the system to break him as before, Carl manages to get more of the crawlers to cooperate and work together on this level. Of course, it also means pulling off some truly insane plans in an attempt to help as many crawlers as possible make it out alive and down to the next level.
Full review posted here.

