Sci-fi MMORPG is eating my time

Appropriately called Time World.

Really deep, with quite a complicated system of planets, heroes, battleships but with instant ship combat that is over in a second if you wish it, and a brilliant strategy mini-game called War of Heroes where you join up with three others to defeat a boss, moving your characters along 4 lines of the playing arena towards the boss, who sends out his minions to attack you.

First such game I've ever played and I'm hooked on it.