I don't know that it's possible to rate a game like this, not because it's been shut down but because it's such an interesting failure.

Ascend was a Dark Souls-style live game where players would align themselves with one of three gods, whose factions would compete in a metagame for control of the world map. The gimmick was that once your character reached a certain level, you could "ascend," which let you re-roll your character and gain new powers by forsaking your old god and changing allegiance. The game's vision was epic — sometimes staggeringly so, particularly its beautiful soundtrack that feels it's mourning a lost world — but the frequent swapping between factions made it difficult to feel invested in the world-scale multiplayer tug-of-war.

I dropped Ascend early on, mostly because I wasn't a fan of the harsh game economy that encouraged players to spend real money to upgrade weapons and armor. But the game has stuck with me for years after it shut down. A big, big swing.