This is a general content mod that was made by Qwerty. They wanted to focus on unique and interesting content over making a lot of content or having some long and tedious progression system that people might not like.

This mod adds 8 bosses with custom AI, a beautiful sky fortress biome/structure with randomized layouts as well as enemies unique to that biome with custom AI, a custom event called the Dino Militia, 8 new accessory prefixes, over 400 items including many new armor sets with unique effects and everyone's favorite; cool and unique weapons!