Been playing AD 2460, a browser based space nation/colony building game. And two weeks in I can say I like it enough to keep going. But it completely lacks any RP community. So if you are looking for a new sci fi game with a decent depth to it, message me in game at 'Uilliam Nebel' and maybe we can get an active roleplay community going there.
Pros; All HTML5 based, no 'pay to win', alliance play makes sense, non-dickish community, game back story is simple and decent making immersion easy.
Cons; Resource constraints are tight starting out, After first week things take a day or more to develop/build/etc, very slow and hard to play starting out independent pushing you to join an alliance, can't choose start location.
http://www.ad2460.com/