Highly recommend to set memory to 8GB, or you might getting crashed!!

There are so much mods inside that I will mention about 5 main categories:

1. HardCore Night

When at night, you will see nothing and mobs are buffed very strong:))

2. Tech

With techgun you can fight with these buffed mobs 

3. Engineering

Immersive engineering are based with these tech mods.

4. Galaxy

explore the galaxy with galaxy legacy and other addition mods

5. Server watch

with watcher you can watch your friend's screen in case he did nothing!!!!!!!!!!