To those who know me personally, much of the following information is review. For those who don't, hopefully this will explain quite a bit.
Hello - I'm Daniel Frandsen, the President / Founder / Lead Programmer for Red Button Games. Usually when I speak as the company, I use generic pronouns like "we," but since this post is more personal I'll be talking as myself.
Mage Tower has had a sporatic update cycle. I apologize upfront about not communicating what was going on, especially when it's part of my responsibility to keep company followers up-to-date. When Mage Tower began development (May 2012), I jumped in as a full-time developer. I planned on slowly ramping up other involvement through a part-time developer and artist, making a monthly update cycle reasonable. Since then, the other involved parties dropped off (through no one's fault), and I was contacted with a once-in-a-lifetime job opportunity (August 2012). The interview process took a while, but I ended up accepting an offer (November 2012) shortly before launching Mage Tower on Desura (December 2012) and another update (January 2012).
Throughout the next 7 months, I moved across the country, sold my house, started a new job, and got married. My update schedule for Mage Tower dropped from then full-time to now just a sliver of the time I wanted to commit to it. Communication dissipated, and I became somewhat nervous to check Desura to see what new dissenting comment I would see. Finally, a new update released (August 2013), and I was happy to see people still interested and to see people who seemed to understand (on some level) what I might be going through.
Now that things are more settled, I have a bit more time to work on updates. However, I'm not going to depend on my time for the release schedule as much as I can help it. To help with that, I'll be working on making updates even smaller, making them more feasible to be on a regular schedule. Second, I'm hoping to bring on more people who would be interested in the project. I'm a bit...picky about who I work with, but it's become clear that giving more of my own time wouldn't make a reliable schedule.
I hope that helps explain my perspective and why things might be moving slower than you'd like. Trust me, I want to play the "full" game of Mage Tower just as much as you - it's just going to take a bit of time. :)