Realms Online is a MMORPG with intense Realm vs Realm battle.
Realm vs. Realm is the main attraction of Realms Online, the three realms are at war with one another. There are three zones that each realm will have access to. The starting zone, which is PvE, the inner zone, which is the frontier to the PvP zone, and finally there's the War Zone, wherein each realm holds forts and castles to be held onto and protected in a bid to protect the gems.
Realms is an uniquely balanced game that allows for both intensely competitive PvP (Player vs Player) gaming as well as deeply engaging PvE (Player vs Environment) gaming. This means that you can choose your style of playing simply by how you develop in Realms.
The game is definitely a traditional MMO in terms of looks, gameplay and a fairly straightforward UI. The graphics never exceed expectations too greatly.Overall, Realms Online should be worth checking out if you are looking for that Free-to-Play experience to serve as a secondary game in your MMO rotation.