Glostone Building Blocks
Wovado

Adds basic glostone-based building materials

Ethereal: All-faces tree blocks
1F616EMO

All-faces tree block for Ethereal trees

Maple tree
Duvalon

Adds a maple tree placed during world generation.

Useful Contraptions
theFox

Some useful contraptions / machines.

Protector Redux
sorcerykid

An efficient and flexible node-based protection scheme for multiplayer worlds

Wheitestone
soeren

deco whitestone

Ocular Networks
mt-mods

Draw power from the world, and use it to power machines and tools.

Obdy
Sires

Adds some pretty OP tools :)

Colored Steel
cd2

Adds colored steel blocks.

Atriumic
Firekiller

Adds a new biome, new blocks, new armor and more.

Real Elevators
Andrey01

Adds realistic elevators with smooth moving.