Me and friend had this idea because we felt like there is no threat to be killed in your own base. Idea: In some night (random) monsters will attack your base But only if you are in your base at the time Not all the bases get attacked at once, maybe one base at a time The monsters are inteligent The monsters that are spawned have special abilities that shouldnt alter the vanilla monsters These are just suggestions/ideas Spiders can climb walls and place vines on the wall for other monsters Enderman can remove blocks that they usually can't, they should place them somewhere near the base, so the blocks arent lost. If its a really tuff base to get into enderman could teleport into the base and create some kind of a portal for other monsters. The shouldnt be able to instantly create it and it should be destroyable. Skeletors have grappling hooks and if its a skybase, they could shoot an arrow and there would be vines hanging from the base for other monsters to climb Creepers that explode drop all the blocks that are destroyed Zombies are fast and can build bridges and structures to get to the player Idea is that they wont break into your base at the first attack, only if you dont repair the damage They should only kill you but not your stuff Now I realise how difficult this would be to program. Its supposed to be in your base, so the code has to recognize what a base is and what not. This could be accomplished by looking for an area where the player spends a lot of time and which he regularly visits. This would also be an area which not many other people visit. One could also check for farms and clusters of chests and the sorts. Now the hard part would probably be the attack code, this would basically just have the goal of killing the player. It has to find a route and preferably a short one, then spawn the needed monsters and just attack the base. Now it would be cool if the plugin reacted to the actions of the player. If the player didnt repair the damage spawn more monsters next time, becauss its more likely to suceed. If the player is always improving his base then wait for a while till he doesnt expect it and spawn tons of monsters at once. Another idea I had, because the monsterspawning is very predictable. If its not possible to kill the player in his base, swarm him with monsters once he is out in the wild. Just randomly spawn around 10 monsters around him, that attack him from mutiple sides at once. I realise that this plugin won't be popular, because it doesnt really fit into the vanilla scheme. Also most players are just too big of a pussy and might quit very soon. This plugin is mostly intended for the fun of it. If you really like the idea and you can do AI and stuff like that, go ahead. The least you could do, is tell me what is possible of all my suggestions. Maybe propose a more lightweight solution that will still kind of work .