Looking for a challenge? - read http://www.cgl.uwaterloo.ca/~csk/papers/xu_kaplan_jma2007.pdf and see if you can implement any part of it!
If you generate mazes or solve mazes, add your code here. (We'd prefer original code, not trivial remixes of someone else's code.)
Although these algorithms generate 2D mazes and most of the projects here view them in 2D, you should be aware that most of these mazes could be adapted to be displayed in 3D using a simple raycaster - of which we now have several quite good ones. I'm including a few of them here as a sample although I don't intend to have this turn into a graphics studio.
By the way, many of the older maze solvers were written before Scratch 2.0 have broken. If you're the author of one of them, please check that it still works and consider fixing it if it doesn't - thanks!
PS I'm opening this up to dungeon-related projects as well, even if they're not exactly mazes. There's a lot in common that can be shared among similar projects. (I mean Rogue/Moria style dungeons - not text-only ones like Colossal Cave etc)