Board Thread:General Discussion/@comment-25533325-20150920140829/@comment-26993120-20150922022011

Build it above ground. Because if a boss is underground when it dies, all the things it drops will be stuck in a block, and you may not know where it dropped. That does sometimes happen with the Destroyer, because it's item drops come from the head. But that is easily solved if you build the house around 6 blocks above the ground. Then you may be able to see the item drops if they drop underground. Also, if you are below the dirt layer, which is where the background can't be mined and you don't see the sky, bosses will not spawn naturally. Say you're on a mining trip, deep underground, and you get a creepy message like this: "This is going to be a terrible night..." That's the natural spawning message for the Twins, which are nearly impossible to fight without a shelter. (At least impossible for me) If you were to remain underground the entire night until day, the Twins wouldn't spawn until the next night. Yeah the boss house has worked really well for me for fighting all three mechanical bosses. It is, however, the least effective with the Twins, because only one will charge you after it's second form. Check the page on this wiki, it'll help a lot. The boss house is the most affective with Skeletron Prime, because half the time he's shooting bombs at you, which bounce harmlessy off your shelter. Skeletron Prime can also be pretty hard too, because when he headspins towards you (like original Skeletron) it's much more powerful of an attack. But that's the only time you can get close to his head to kill him, unless you have a set of wings or one of the Boots (Rocket Boots, Spectre or Lightning boots work well) to fly up after him. I hope the house works well for you! Oh, and sometimes if you add a workbench to the house, a NPC may think it's a literal house because of the bed and workbench (a bed actually counts as a chair for NPCs, and a workbench as a table), and they could move in. If this becomes a constant problem, because they're always getting killed by a boss, you could take out a ceiling block or two. Just make sure they're in separate areas, otherwise you'll have zombies dropping in on you! (Pun partially intended.)