I know that you've gotten bored of roguelikes because they're so easy to wrap your head around and master, so here's one that takes place in hyperbolic space
Twelve years after its last update (3.4.3), Nethack 3.6.0 has been released. [previously] [previously]
Nethack's Dev Team have confirmed that code circulating under various next-version numbers (3.4.4, 3.5, 3.5.0) was a leaked development build. [more inside]
Stalin's Story, by Victor Gijsbers, is a game combining Vladimir Propp's folktale archetypes with totalitarian manipulation. One player assumes the role of Stalin, and with it the power to dictate the rules and order executions; other players are either actors trying to beguile him with a traditional rustic tale or courtiers trying to twist the tale's elements to their rivals' discredit. [more inside]
Dwarf Fortress 2012 has been released! After DF2010 [mefi], Toady One had planned to keep up a regular schedule of smaller releases. But while adding 300+ animals from a fundraising drive, the feature set spiralled beyond expectation. [more inside]
Desktop Dungeons offers an unquestionably unique approach to Roguelike games by taking compactness to the extreme. It distills the entire genre to a few core ideas which pay homage to the greats while forging new ground with gameplay similar to that of Oasis or Tower of the Sorcerer. It also features emergent complexity that rewards truly skilled and thoughtful players.
What can one learn from the design choices of past games? John Harris discusses different game aspects, 20 games at a time, at Game Design Essentials. You can read on 20 Open World Games (where generally the player is left to his own devices to explore a large world), see your destroyed controllers in a new light with 20 Difficult Games or check out 20 Mysterious Games (that rely on algorithmically-generated content or emphasize secret-hunting), 20 Unusual Control Schemes and 20 Atari Games. What about roguelikes, you say? [more inside]