In Terraria, the Wizard shares several similarities with other NPCs like the Goblin Tinkerer and Mechanic. All three characters initially spawn in a bound state in the underground areas of the game. Players must interact with them to free them, after which they will respawn as long as there is a vacant house available. These characters are also part of the Hardmode phase of the game, becoming available after the Wall of Flesh has been defeated. They all contribute to the game by offering various services or items for sale, with the Wizard specifically selling magic-related items.