Please recommend a Game for me!

So I recently played Royal Quest, and in doing so My mage is able to cast placeable spells, like fire wall that block a mobs movements, or attacks that are aoe and have a placeable icon. The population on that game is dead though. I'm looking for a game similar where classes can place a wall or turrets but isn't a tower defense game like Dungeon defenders.

I've played DDO and its just not my cup of Tea. Any others out there with placeable attacks?