This modpack offers a balanced gameplay experience with massive system focused on advancing in the game. It merges the boss fights, how to find the bosses and exploration. This pack also doesnt add all those unnececery mods so you can have the best Vanilla+ expiriance.

Features

• 30 high quality bosses to bring the ultimate minecraft expiriance from diffrent mods such as Mowzies mobs, L_Ender Cataclysm, Twilight forest and more.

• 3 new dimentions to explore such as the Aether, the Twilight forest and the Broken Constellation dimension.

• more ores, armours and artifacts to improve your combat against the new overpowered creatures.

• better village vs illage rivalty making villagers to respawn upon death (on easy difficulty only), enlarging the villages and making the raids harder by adding new bosses and more.

• Better End by adding more bosses, structures mobs and also a portal to the 5th final dimention in the game.

• More animals making the game more alive using mods like alex mobs, exotic birds and earth mobs mod.

full mod list and their creators: 

https://legacy.curseforge.com/minecraft/modpacks/bosses-add-ons/relations/dependencies