There are 3 base classes, then 3 more branches for every class, then another 3 more branches for the branched classes. It has a easy to use interface, but the graphics are dated. In the beginning it is easy to lv. up via quests, but in the high levels(did I mention the level cap is currently 200?)you are better off grinding. It has Open PvP area, organized PvP areas, "Death Zones"(they are neutral zones in between realms that has no authority where people gather to rape everything that moves for tons od exp.), Party vs. Party, and then more massive PvP.

The more "massive" PvP comes in the form of Clan/Legion/Kingdom/Realm(in order from least to greatest size) wars. Everyone can found a clan easily, but to build it up to a legion alone is a HUGE task... not to mention making it a kingdom. If you do make it a legion, you will eventually be able to build a legion camp where you can recruit members, sell/trade things, have NPC shops, etc. Kingdoms get to literally build kingdoms similar to the huge NPC cities! All the "groups" in a realm are suppose to work togather to expand the realm by going to war with other realms, but their is rarely any teamwork because if there was all the earnings would be split between groups.

It is F2P, and the premium items don't give too huge of a advantage, so it is very balanced!

Little Extras: It has a emphasis on mounts, I mean everyone lv. 15+ has a perma-mount. Your character has around 25 equipment slots, from single earings to belt buckles. Although grinding in the higher rounds is a good idea, you can get 3x the exp. being a PK in the "Death Zones". Before Lv.20 you are protected from PKs, and even after people from your realm(if your in the realm) can't kill you, but if someone from another realm comes(via Raid Shrine, Cleric Tele, Raid Party, War Portal, etc.) into your realm... you better hide, but fear not... if you are attacked you can send a realm-wide(a mod message appears on everyone from your realm screens) distress, and once sent your realm mates can tele to you and save you(they will by the dozens, because it's free PvP and helps build the realm)! Realms have elections for players to literally run the realm for a month, and once in office you can go declare war on other realms. During war, you at first send raid parties to clear out any weak legion camps, then establish War Portals so realm mates can freely go into the enemy realm.