Cleric (class)

Clerics - or Priests - are both a class and a profession. Everyone with the profession Priest belongs to the Cleric class, but not everyone who belongs to the Cleric class is a pastor who holds masses at a church - after all, there are wandering Clerics too, who spread the word from horseback, as well as Inquisitors whose job is a "little bit" violent in nature, to say the least.

Clerics are most distinguished from Magicians by the fact that Clerics use Clerical Magic, while Magicians rely on Arcane Magic. Both have access to the three basic spells.

The Original FRPG
In the original forum-based RPG, being a Cleric requires at least a Strength of 10, an Endurance of 11, an Intelligence of 9, a Wisdom of 13 and a Charisma of 10.

Being a cleric grants the character basic skill at blunt weapons, and the skill to wear light armour, as well as the unique feat of being able to sense magical energies around himself/herself.

Clerics have one prestige class, the Inquisitor, and one dual-class prestige class: combining Warrior and Cleric into Knight.

RPG Maker Adaptations: 2012 and 2013
In the RPG Maker-based video game adaptations of the FRPG, clerics have more hitpoints than magicians, a relatively good defense rating, but are slow. While Magicians have spells of overwhelmingly destructive nature, Clerics focus on either healing spells (if Human, High Elf, Dwarf, Gnome, Halfling), curses and Dark Magic if Dark Elf.

Clerics have a very limited array of offensive spells, but to compensate for that, they can use heavy weapons and wear armour up to chainmail-level. Nevertheless, they are forbidden from using ranged weapons and bladed weapons like swords and axes, meaning they are limited to staffs, clubs, hammers, maces and morning stars.

World of Artograch
The tabletop roleplaying system does away with classes altogether, deprecating them in favour of backgrounds, which allow players more flexibility during character creations. Nevertheless, it's still very much possible to play as a Cleric - the player simply has to focus on the Intelligence and Willpower attributes and on Magic-oriented feats. There are also two backgrounds explicitly made for Cleric characters: Wandering Priest and Wandering Monk, though other backgrounds also allow the player to pick Magic feats.