Nice! The problem with my trap currently is that the mobs always spawn somewhere else >.< Have you actually searched for a dungeon with a cage in it and connected it to your trap? I found the dungeon randomly, and I built a trap next to it, then built a house on top. I've found 4 dungeons on that save, this one is quite special There was 2 dungeons connected to each other. Both spawns spiders. I've set up cactuses over the whole floor area, and there's a water pit in the middle. Spiders always jump, so you can't drown them. The spiders jump towards the middle while being hurt by the cactus, and they land in the pit in the middle, where they try to jump out of the water, only to hit their heads into the cactus at the sides. Got a cave that leads into this room, under the waterpit. The doors prevent the water from flowing in. Here you can see the spiders splashing in the water. Every time they jump up they loose 1 hp.