Considering that it's been almost three years from last update, I'm sure you can guess what happened. Or rather, that nothing has happened. The game is still in the same state as over two years ago, and I currently have no plans to continue further.
This doesn't mean that Twisted Tower is completely abandoned though. I keep having this desire to start over, focus on quality over quantity, go higher resolution, more detailed animations, more refined and bit more streamlined gameplay, etc. I just currently don't have the time and energy for game development. But some day in future... I'd like to try again.
If you haven't played Twisted Tower yet, the last public build should still be available in the Downloads section. It's around 3-5 hours of gameplay (depending on playstyle and platformer experience), most of the dungeon crawling features are in, but there's very little story, no quests, and the final boss is missing, the boss room door leading back to floor 1 of the dungeon. There's some replay value too, since dungeon floors are randomly generated, weapons and armor are random drops with random stats, and there are 6 talents to unlock, of which you can only unlock 2 each playthrough. Feedback is still very much welcome. I can use every bit for the remake I can hopefully do some day.
Thanks for following the development and I hope Twisted Tower in its current state has brought you some enjoyment.