Nightmare King Grimm boss fight is a co-op adventure map, but you can play single-player if you want, and your goal is to defeat Nightmare King Grimm.
You can equip yourself with custom Armour and custom Charms to help you fight the Boss.
Nightmare King Grimm boss fight has 9 unique custom attacks, for you to learn and adapt to.
There are 15 custom armour, and 15 unique charms with special effects, which you can pick to see what is your favourite for your build.
Adventure map has a texture pack, which you can find in the folders of the map, or to this link.
and thank you to these beta testers for finding issues in the map.
DYAHIR
goldybear5
EpsTheta
SiniSnipe