Stairway Games

Rusty Hearts is a free-to-play hack 'n' slash MMORPG. It is not a "full fledged" open world populated by the entire server populace. It is more akin to Phantasy Star Online or Guild Wars were there are public lobbies or towns, and the world outside is instanced. The game offers cell-shaded graphics and JPG-style real-time combat style that takes into account character placement, attack timing and combo success.