The Loyalists are a faction of Humans who are loyal to the throne of Wesnoth. Humans are a versatile race who specialize in many different areas. Similarly, the Loyalist faction is a very versatile melee-oriented faction with important ranged support from bowmen and mages.
The race of men is an extremely diverse one. Although they originally came from the Old Continent, men have spread all over the world and split into many different cultures and races. Although they are not imbued with magic like other creatures, humans can learn to wield it and able to learn more types than most others. They have no extra special abilities or aptitudes except their versatility and drive. Although often at odds with all races, they can occasionally form alliances with the less aggressive races such as elves and dwarves. The less scrupulous among them do not shrink back from hiring orcish mercenaries, either. They have no natural enemies, although the majority of men, like most people of all races, have an instinctive dislike of the undead. Men are shorter than the elves, but taller still than dwarves. Their skin color can vary, from almost white to dark brown.
The Merfolk live in the shallow parts of the ocean, wary of the monsters that lurk in the deep. Ordinarily they form alliances with no one, but in Asheviere's time they allied with the elves in order to defeat their captors. Mermen are powerful and quick in any watery environment, but struggle greatly to move on land.