http://tprpg.sourceforge.net/ Tales of Paraverse
Designed to look like Nethack, but written from scratch.
Q: Ok. What is already implemented in this game?
A: I have already done level and player generation, movement, fighting with monsters, using weapons and tools, saving, level changing and so on.
Q: And what is not?
A: There are still some bugs in the game. Also, the game functional is simple now. Later, it will grow. I am going to improve interface, fighting, add new tools and monsters
http://tyrant.sourceforge.net/index.html Tyrant
A graphical Java Roguelike that seems to have made good progress before being, seemingly, abandoned.
http://lnl.sourceforge.jp/en/ Labyrinths & Legends
A very interesting looking ongoing attempt at a fusion of Wizardry stylings and Roguelikes, with a party of up to 6 members, ASCII and Graphical Tile mode, etc. Last update was fairly recent as well...so there seems to be a bit more hope in this versus Darkhall in terms of said interesting combo trying to manifest out of Japan.
Finally, there is HidingHole---the status of which I can't divine as I don't understand Japanese script in the slightest, but should the recentish Youtube videos be any indication, seems to be decently along and perhaps nifty.
http://blog.livedoor.jp/corsica10/http://www.youtube.com/user/MrCORSICA10 Channel with the 2 videos thus far
