Both are just plain awesome games. The best Archmage game out there is The Reincarnation, very close to the original, gets updated between nearly every set if not every set, and has an acceptable following. The only Archspace game out there was Magellan Wars though that went down last year with no sign of coming back so HippieHunter's Archverse is back in development by a new group of people so we'll see what happens with that. If people wanted to mess around in the new Archmage I could probably show up for a bit
