Gauntlet is the name of a fantasy-themed hack and slash 1985 arcade game by Atari Games. It is noted as the first class-based multi-player game. Released during the emergence of popularity of other role-playing games like Dungeons & Dragons, the game was a sensation, being one of the first true dungeon crawl arcade games.
The players, up to four at once in the arcade version, select among four playable fantasy-based characters; Thor the Warrior, Merlin the Wizard, Thyra the Valkyrie or Questor the Elf. Each character has his or her own unique strength and weaknesses. For example, the Warrior is strongest in hand-to-hand combat, the Wizard has the strongest magic, the Valkyrie has the greatest armour and the Elf is the fastest in movement.
Source: Wikipedia, "Gauntlet (arcade game)," available under the CC-BY-SA License.