Scape and Run: Parasite Cure

Loot++

Lets you customize chest loot among other things, and lets you add new items and blocks.

Mod 4,153,149

Ender Mail

Employ Endermen to deliver packages for you anywhere in the world.

Mod 4,148,419

Large Fluid Tank

Max 1048576000mB per a tank

Mod 4,147,692

FTB Dripper (Forge)

Adds a block that drips water onto another block below it, slowly transforming it

Mod 4,145,920

ChatFlow

Full control of incoming chat messages via Regex

Mod 4,142,108

FTB Team Islands (Forge)

Team Islands adds a new world type which is a void world with a hub in center and islands spawning around it

Mod 4,141,965