Seed, from Runestone, is not your typical online game. First of all, there are no wide-open vistas and environments that will have players traversing the world. The game centers within the colonizing structure that is known as Da Vinci. Secondly, there is no combat, no mobs that you kill to gain experience and level up. Instead Seed focuses on maintaining the colony platform, fixing various and persistent equipment breaks, leveling up engineering skills and then, if you so choose, engaging in the politics within the colony.
Of course, this requires a different mindset on the part of the gamer. It also, in many ways, requires more creativity.