Bees are rewarding but not required
world by @levon
Lot of mods connected with each other
World by levon
Buffs of unused mechanics
Some mechanics, like IC2 crops, was x10 times buffed to make them useful
QMD room
world by blisslen
About 10 Thaumcraft addons linked with each other
world by @thefool
OTG worldgen option
You can chose Open Terrain Generator instead of Biomes O' Plenty
Shaders and texture packs
world by @artpoke
Thaumcraft quest chapter
Immerse quest integration made by TabakaSIM
Lot of decoration options
world by @_Stea
Skyblock option
To play Skyblock just create new Void world. You will need additional pack preparations through.
New mods - QMD and NC:O
Quantum Minecraft Dynamics and Nuclear Craft: Overhauled
Main Menu
Main menu screenshot with shaders
Rats and animals
Animals better integrated into modpack. For example, Rats give shortcuts to cheaper resources.
Bees buffed, but not required
You can finish the pack without bees. But if you do them, you get big benefits like huge storage options or simplified tech recipes.
Little Tiles instead of Chisel And Bits
Little Tiles have lot more features. For example, you can make your own candles.