OptiFine Ultra

Optimizes Minecraft graphics so that it looks better and runs faster (Multi-Core CPU support)

OptiFine Light

Optimizes Minecraft graphics so that it looks better and runs faster (better FPS only - for slower computers)

MAtmos

Generates an awesome natural soundscape based on your surroundings like birds chirping, wind and lava rumbling

Micdoodle Core

A core mod required by Galacticraft

Galacticraft

Build yourself a spaceship and explore the universe, land on new planets or hang out with your friends in the local space station