This tag is specifically for the first Wild Arms game in the series, encompassing both the original PS1 release and its remake Wild Arms: Alter Code F.
Taking place in the fantasy world of Filgaia, Wild Arms follows the adventures of a band of miscreants and adventurers called Dream Chasers who scour the world in search of excitement and fortune. The player assumes control of a young boy named Rudy who has the ability to operate powerful weapons called Ancient Relic Machines (ARMs), forbidden remnants of a lost age that resemble guns. Along with his companions Jack and Cecilia, the group must use their respective skills to navigate through the vast wastelands and dungeons of Filgaia and prevent an otherworldly threat from reviving their lost leader and destroying the world. -- Wikipedia
The PS1 Wild Arms started the series' recurring idea of steampunk, spaghetti western-styled worlds and characters blended together with typical fantasy world ideas like magic and summonable deities. In addition, both Wild Arms games are lauded for their storylines and characterization.
The PS1 version only has three playable characters:
The PS2 version adds four new PCs who were all present in the original as NPCs.