How do I get the Demolitionist NPC to move in Terraria?

To get the Demolitionist NPC to move into your world in Terraria, you need to meet specific conditions. The Demolitionist is a valuable NPC who sells explosives, such as bombs, dynamite, and grenades, which are useful for mining, clearing large areas, and fighting enemies. HereÔÇÖs a detailed guide on how to get him to move in, including mechanics, strategies, tips, and considerations.

First, the Demolitionist requires two main conditions to spawn. You must have an empty, valid house for him to move into, and you must have at least one explosive item in your inventory. Explosive items include bombs, sticky bombs, grenades, or dynamite. These items can be found in chests underground, purchased from the Merchant NPC, or crafted using materials like gel and bombs. Once you meet these conditions, the Demolitionist will move into the empty house during the next in-game day.

To prepare for the DemolitionistÔÇÖs arrival, you should focus on building a suitable house. A valid house in Terraria must meet specific requirements. It needs to be at least 6 blocks wide and 10 blocks tall, with walls, a door, a table or workbench, a chair, and a light source like a torch. The house must also be fully enclosed with background walls, which can be crafted using wood or other materials. Make sure the house is in a safe area, away from Corruption, Crimson, or other hazardous biomes, as NPCs will not move into houses in dangerous locations.

Once you have a valid house, you need to obtain an explosive item. Early in the game, you can find bombs in underground chests or by breaking pots. If you have already defeated the Eye of Cthulhu or explored enough to find the Merchant NPC, you can purchase bombs from him for 3 silver coins each. Alternatively, you can craft bombs using gel and bombs at a workbench. Once you have at least one explosive item in your inventory, the Demolitionist will be eligible to move in.

A common mistake players make is forgetting to check their inventory for explosive items. Even if you have a valid house, the Demolitionist will not spawn unless you have at least one explosive item. Another mistake is building houses in unsafe areas, such as near Corruption or Crimson biomes. Always ensure your houses are in safe, neutral biomes like the Forest or Plains.

For advanced players, optimizing NPC happiness can be beneficial. The Demolitionist prefers living in the Underground or Cavern biomes and likes being near the Tavernkeep and Mechanic NPCs. Placing him in his preferred biome and near his liked neighbors will increase his happiness, reducing the prices of his items and providing access to the Pylon network for fast travel. To maximize happiness, build a small underground town with houses for the Demolitionist, Tavernkeep, and Mechanic. Use stone bricks or other underground-themed blocks to create a cohesive look.

Resource requirements for getting the Demolitionist are minimal. You need basic building materials like wood, stone, and torches to construct a house. For explosives, you can either find them in chests or purchase them from the Merchant. If youÔÇÖre crafting bombs, youÔÇÖll need gel, which is dropped by slimes, and bombs, which can be found or bought. These resources are relatively easy to obtain early in the game, making the Demolitionist one of the first NPCs you can recruit.

In terms of class and equipment considerations, the Demolitionist is particularly useful for players focusing on mining or explosive-based combat. If youÔÇÖre playing as a melee or ranged class, his explosives can help clear large areas quickly, making resource gathering more efficient. For summoners or mages, his items can provide additional utility for dealing with groups of enemies or breaking through tough blocks.

A specific example scenario involves a player exploring the underground early in the game. They find a bomb in a chest and decide to build a house near their spawn point. After placing the bomb in their inventory, the Demolitionist moves in the next day. The player then uses the DemolitionistÔÇÖs explosives to clear a path to the Corruption biome, making it easier to defeat the Eater of Worlds boss.

In summary, getting the Demolitionist to move in requires a valid house and at least one explosive item in your inventory. Build a safe, suitable house in a neutral biome, and ensure you have bombs or other explosives. Avoid common mistakes like forgetting to check your inventory or building in unsafe areas. Optimize NPC happiness by placing the Demolitionist in his preferred biome and near liked neighbors. With minimal resource requirements and straightforward conditions, the Demolitionist is an easy and valuable NPC to recruit early in the game.