Last Chaos is a free to play standard point and click MMORPG developed by Aeria Games. The back story meant to usher the player into the game universe is not lacking depth, on the contrary it has just a bit too much. Suffice to say that it all started with the clash between two powerful gods and their armies, and players are part of this conflict. The game offers six classes to choose from, which are at their core the basic fantasy MMORPG archetypes: Knight, Titan, Mage, Healer, Sorcerer, and Rogue, and each class comes with two dual-class (job) options. Character development is based on gaining experience from killing mobs and completing quests, and with each new level players will have a new stat point to spend in their character screen.

Last Chaos comes with at least two highly interesting features. One of them is the personal dungeon system which every player can access and thus enter an instanced dungeon where mobs spawn at increased rate. The other is ERAS, short for Exciting Range of Aggressive Battle System. What this system does is apply damage to all enemies caught in the ability’s range. So while a horizontal sword sweep is targeted at a single enemy, if others are in range of the animation, they will also be damaged.

Another exciting feature in Last Chaos is the highly in-depth and very popular pet system. Pets come in a variety of different forms including mounts and combat companions. Players can use pets once they've completed the appropriate quest. Using pets offers more depth to character progression as players can choose different pets depending on their personal approach to combat. Outside of combat pets, there's a huge variety of mountable pets including dragons.

Even though the game seems outdated, some of its features are original and highly interesting.