So, I started playing this game
Stardrift Empires a week or so ago .. it's one of those "build an empire and conquer the galaxy" kind of games where you build & research units and stuff.. and it takes a while for things to build so you just log in and enter a few orders, then go do something else. There's tons of different ships and droids to build and tech to research. And it's free to play, but you can buy credits to get special items or upgraded versions of different ships and stuff. I'm just sticking with the freebie stuff. But, I like that it's not a major time sucker like most online games...
check it out if you like that kinda game