[Szumo]

I'm in 4 games atm:
Nuance - late mid game
Jaguar - early late game, only 3 human players left
DoomChicken - early game
Perpetuality - late game

Generally, i'm trying to keep between 3 and 4 games running, with no more than two in mid or late stage. I don't micromanage often, so i can keep early game time per turn to 5-10 minutes including diplomacy, mid late game time to 15 minutes to 45 minutes a day (per game) including diplomacy.
That assumes 24h timers - most games go to slower timer once in middle stage so that's a turn per 2 days usually.