What are the best biome preferences for the Mechanic NPC in Terraria?

The Mechanic NPC in Terraria is a valuable character who sells wiring tools, traps, and other mechanical items essential for building complex contraptions and traps. To maximize her happiness, you need to place her in a biome she prefers and pair her with neighbors she likes. This will reduce her prices and allow her to sell the Teleporter, a highly useful item for advanced players. HereÔÇÖs a detailed guide on how to achieve this.

The Mechanic prefers the Snow biome and dislikes the Desert biome. Her favorite neighbor is the Goblin Tinkerer, and she dislikes being near the Princess or the Stylist. Placing her in the Snow biome with the Goblin Tinkerer nearby will make her happy, reducing her prices and unlocking the Teleporter for purchase. To set this up, youÔÇÖll need to create a suitable housing area in the Snow biome. This involves building houses with walls, furniture, and light sources. The Snow biome is located in the icy regions of your world, usually on one side of the map. You can identify it by the snowy terrain, ice blocks, and unique enemies like Ice Slimes.

To prepare, gather materials like wood, stone, and ice blocks. YouÔÇÖll need at least 300 ice or snow blocks to create an artificial Snow biome if you donÔÇÖt have one nearby. Build a house using these materials, ensuring it meets the basic housing requirements: at least 6 blocks tall, 10 blocks wide, with walls, a table, a chair, and a light source. Place the Mechanic and Goblin Tinkerer in this house. If you donÔÇÖt have the Goblin Tinkerer yet, youÔÇÖll need to rescue him from the Underground layer after defeating the Goblin Army. Once both NPCs are placed in the Snow biome, their happiness will increase, and the Mechanic will sell items at a discount.

One common mistake is placing the Mechanic in the wrong biome or with disliked neighbors. For example, placing her in the Desert or near the Princess will make her unhappy, increasing her prices and preventing her from selling the Teleporter. Another mistake is not providing proper housing. Ensure the house is valid by checking the housing menu. If the house is invalid, the NPC wonÔÇÖt move in, and youÔÇÖll need to fix the structure.

Advanced techniques include creating a centralized Snow biome town where multiple NPCs can live. This allows you to manage happiness for several NPCs at once. For example, the Tavernkeep also likes the Snow biome, so you can place him nearby to maximize efficiency. Additionally, you can use pylons to create fast travel points between biomes. Place a Snow Pylon in your Snow biome town to easily access it from other areas of your world.

Resource requirements include wood, stone, ice blocks, and furniture. YouÔÇÖll also need to defeat the Goblin Army to unlock the Goblin Tinkerer. If youÔÇÖre creating an artificial Snow biome, gather at least 300 ice or snow blocks. For combat, bring weapons and armor suitable for the Snow biomeÔÇÖs enemies, such as Ice Slimes and Wolves. A ranged weapon like a bow or gun is effective against these enemies.

In terms of class and equipment, any class can manage this setup, but ranged or magic classes may have an easier time dealing with Snow biome enemies. Equip warm clothing like the Eskimo set if youÔÇÖre playing in Hardmode, as the Snow biome can spawn tougher enemies like Ice Golems. These enemies drop useful items like the Frost Core, which can be used to craft Frost Armor.

A specific example scenario is setting up a Snow biome town early in Hardmode. After defeating the Wall of Flesh, youÔÇÖll have access to the Mechanic and Goblin Tinkerer. Build a house in the Snow biome, place both NPCs there, and use the Teleporter to create fast travel points for boss fights or resource gathering. This setup not only maximizes NPC happiness but also enhances your overall gameplay efficiency.

In summary, to make the Mechanic happy, place her in the Snow biome with the Goblin Tinkerer as her neighbor. Avoid placing her in the Desert or near disliked NPCs. Build valid houses, gather necessary resources, and prepare for Snow biome enemies. Use advanced techniques like pylons and centralized towns to optimize your setup. By following these steps, youÔÇÖll ensure the Mechanic is happy, reduce her prices, and unlock valuable items like the Teleporter.