5 games. I once was in 8 games, but i like to roleplay, so it took my too much time. Im in both Star Trek games, heavy roleplay. Then in Adamant Galactic Invasion which is on hold since a few days due to a update-error. Than im playing a quite cool Devnull mod game...then another adamant mod which is about to start...lastly a proportions game which is getting quite boring. Its mostly downloading one turn each week, opening it, closing it, uploading it.
All of the games im in a good position, apart from playing a minor race in the first star trek game. Still, all my empires take me several hours per week, due to managing and of course due to my roleplay-thingy
