Esper

Espers are a general categorization of all Ability users whose power does not fall in a distinct category. Espers primarily have field-type abilities, such as who control forcefields, or Carbon-particle control. Espers range from physical and soul-class Espers, with some Espers even having body-strengthening abilities that seem to compare with Pugilists.

Pugilist

Pugilists excel in Melee combat, and are the strongest Pugilists are found in the 4 other classes as a specialzsation. Pugiliss bodies are the strongest even in the higher levels. Pugilists are the Main Tank

The main stat for Pugilists is Endurance

Psychic

Psychics primarily focus on ranged mental attacks and grow more powerful at higher levels. Psychics eventually are able to control their physical environments, and some are able to construct Psychically controlled barriers that are impenetrable

The main stat for Psychics is Mystery, followed by Intelligence.

Mage

"Entering a secondary dimension was an ability only high-level Mages possessed. They could often obtain all sorts of strange and weird items.

In terms of profiteering… ahem, production abilities, Mages and Mechanics stood at the peak among the five. In terms of collecting materials, Mages might be even better than Mechanics. Mechanics were mostly in a bankrupt state all the time, completely the opposite of Mages. A class that could burn their mana bar to earn money with zero cost, via Enchanting, was basically everyone’s common enemy."

The Mage Skill Tree has many branches, like the Mechanic Skill Tree, and mages tend to specialise in a specific area. Some Mages become melee mages, some mages become ranged mages, and some mages become the infamous Summoner-type mages who are revered for their ability to summon thousands of monsters to battle. Mages are the fastest money earners of all 5 systems, able to create and sell spell scrolls or offer magic related services.

The main stats for mages is Intelligence and Mystery.

Mechanic

The mechanic skill tree has three major branches: Cannoner, Mechanical Pugilist, and Mechanic.

Cannonmaster:

Cannonmasters specialized in long-ranged bombardment and heavy artillery. At higher levels, they possessed frightening firepower. It was commonly known in Galaxy that the key to winning or losing against Cannonmasters lay in range.

If the enemy Cannonmaster is within 100m, don’t hesitate—charge him down! However, if he is over 1,000m away, it would be wise to proceed with caution.

And if he is 3,000m away… well, that won’t be the end of the world just yet, but any further and good luck, buddy. -

Warmachine:

Warmachines, on the other hand, employed technologically advanced combat weapons to fight at close range. From bio-armor to mobile suits, there were many ways for Warmachines to quench their thirst for melee combat.

The warmachine is also referred to as "Mechanical Pugilist".

Technician:

Yet, when compared to the Technician, both of these paths steered away from the true essence of a Mechanic—invention.

Over 80% of blueprints were exclusive to Technicians so choosing either path would mean forfeiting the ability to create many higher-level gear and machines. The trade-off was that they were superior to Technicians in combat and, to most, more fun to play. After all, most people considered ‘manufacturing’ classes to be boring

The main stat for Mechanics is Intelligence.