Id like to suggest this hidden gem (Wizardry Online) which is very popular in Japan, but the US and EU server was shutted down not while ago. The game still has around 200 fix members in the US/EU (http://www.thepetitionsite.com/782/734/313/help-us-prevent-soe-from-shutting-down-wizardry-online/
). Wizardry Online always had low popularity (which I loved in the game), because of two things. Firstly in SoE's care, Wizardry Online never got any advertisement, and had a terrible start (mainly it was very laggy for quite a long time.. so it was not because of the game itself). Secondly, because of the game itself, because it is a hard game, and new players turned out from the game after a few hours of playing (most of them). They either didnt figured out how combat works (targeting, dodging, aiming .. I think these are the hardest in WO's combat. And the timing ofc) and didnt called for help even in game or forum. Also new players very often thought it is a solo game, but it is just impossible to solo Wizardry Online, or to be precise, it wasnt possible in the US/EU version, because we didnt reached that point, where it became possible (still it is hardly soloable, but possible).
With avioding the mistakes, what SoE did with this game, I am pretty sure, it would have the chance for a bigger popularity what popularity it had (which are good chances in Aeria Gaming's hand). I would be more than happy if You would run an US and EU servers for this game!
Lastly a teaser from the game (player-made PvP event in EU server):