Invasion Mod gives you the ability to initiate an attack on the location of your choosing. The difficulty steadily ramps up and the mobs are designed to deal with base defenses. The behaviour of all invading mobs has been extensively revamped. Most mobs have new abilities and in this beta stage there are some new mobs and substantially more powerful mobs on the way, geared towards new roles.
Invasion Mod Features:
Note: the nexus acts as a beacon and GUI for invasions(that’s why it’s there), but mobs spawning at night don’t yet have any way of organising themselves around a player or central point.
The area you set up at will certainly take a bit of a beating (a large beating if you are very stubborn and last a long time), but there is no “massive destruction” or silly unfair mechanics that will randomly destroy all your work. This includes the nexus(it does not damage any blocks). Still, you can back up your map if you want.
Invasion Mod Guide:
The Nexus and How to Use It
Invasion Mod Items
Invasion Mod Installation:
Invasion Mod Changelogs: