There WAS radio free Ariadna, but it only got to two shows.
There WAS also Forward Observer, that got to a few (7 or 8) episodes before personal crap got in the way and they ended. There was also some friendly rivalry between them and O-12 (unfortunately NOT seen that way by O-12).
The guys STILL PLAY the game, they just don't have the time to do a podcast for it.
Currently, I think O-12 is it.
It has got better since Kip and Tom took a more forward position. For a while it was in danger of emulating
40k radio and not in a good way.