Dungeons & Dragons is a fantasy role-playing game that has been popular since the 1970s. It involves creating characters and playing out adventures in a fantasy world. The four figures mentioned in the crossword solutions are all characters from the game. A MAGE is a spellcaster, usually a wizard or sorcerer, who uses magical powers to fight enemies. An ELF is a mythical creature with pointed ears and magical abilities. A KNIGHT is a warrior who fights for justice and honor. An OGRE is a large, brutish creature that is often used as a villain in the game.