Actually, not so sure
I thought, the titles are confusing, the one is "An IRC RMC game" and this one is "An ICE chat game".
And I'm not sure if it is appropriate to recruiting poeple here and play online in the officail ICE chat as I like.
Plus, if it's played in Japanese? It must be a total Greek or Klingon to most of the people here,
(and heck, it was once a hostile language (though t' was over half a century ago) in English speaking countries...)
And it seems people playing online RM/SM/HARP tend to get together at RPGRM.
There's a saying that says "the nail that sticks out will get a pounding".
(Incidentally, I've never seen the ICE chat room used since it was opened, and I thought "oe" roll function was waiting for us there, and it's too "mottainai" to leave the room unused. )
......but, be that as it may, playing RPG by online chat and mapping tool is not bad, and it's worth doing. It's an established way to play tabletop RPGs (at least here in JP. It's very easy to find an online session here, if you don't mind which system to play with).