I'm considering backing out from the D6 system. Before I get into why I'm considering that, I want to explain why I initially switched to the D6 system.
Earlier this year, I was struggling with combat design and balance. The D6 system was an appealing way to get out. Its pretty easy to explain and basically takes care of itself mechanically. It allowed me to focus on other aspects of the game and let the numbers take care of themselves without too much direct interference.
On August 6th, most of the game was converted over to a D6 system. While the time difference is relatively small, I think the game and me are in a much different (better?) state. I believe I'm capable of making a fun and engaging combat system without relying on D6 now.
Finally, I feel I ought to talk about why I consider the D6 system to be a limitation now. One thing I really want to do is make a diverse weapon system. Currently there are 6 different weapon types, but they're all basically minor variations of each other. I don't really feel like there's a good way for me to simulate certain types of weapon behavior and, subsequently, I find it difficult to make each weapon feel unique. Admittedly, part of this is probably just designer incompetence. I'm sure a cleverer developer could make a castle where I'm making a mud house. Still, I do feel like taking off the "chains", as it were, will benefit the game in the long run.
As with most of these game design posts, nothing is absolutely set-in-stone. The D6 system still offers a few nice advantages and is easier to "balance". If I do go forward with this change, it won't be part of a subversion. It would most likely occur in either 0.6a or 0.7a.
If you have a personal preference on random-number-systems, pros or cons for keeping or removing the D6 system, or just want to remark on how the game feels right now, comments are most welcome! As always, you can also hit me up on twitter or e-mail me. I'm also curious to know if people enjoy these game design articles. I'm probably not going to stop writing them anytime soon, but I'm still interested in feedback.