Mods for 1.6.4
29 mods match your filters.
Adds plenty of blocks and items to defend and secure your base with.
An innovative natural magic themed tech mod
Tinker a little, modify all the tools, build a smeltery, then tinker a little more. The classic modular tool mod.
Pipes!
BTW: The most infamous hardcore survival and tech mod in the history of the game
Translocates stuff!
A Fabric port of NarcolepticFrog's Redstone Multimeter mod
Trees, bees and more.
A mod about computer programming, adding in-game computers and turtle robots that run programs written in Lua.
Expansion for Forestry mod - new bees, trees, and more!
This mod adds minimalist parts for expanding vanilla redstone automation, and many other things.
Additional blocks useful for tube/pipe mods
Chunk loader mod
Tinkers' Mechworks is a mod that adds various redstone machines.
Advanced redstone wires, gates, lamps, and cleanrooms.
ComputerCraft peripheral addon
Forcefields addon for IC2
Induction Furnace-like machines for macerating, extracting and compressing
A Mod About energy, and matter and getting stuff done! Probably.
Turn experience points into a transportable liquid
Unlimited distance item transport mod
Small mod that adds some extra button and button-related blocks to Minecraft
Compendium of ComputerCraft peripherals
Block for automatically feeding nearby players.