Mod Packs / Libs / Special Interest
Doesn't fit in the other categories, like libraries, small fixes or modpacks.

5dim's mod
New energy types, decorations, electric train, new types of belts and inserters, bigger inventory and many more stuff.
Moderators: odin_spain, McGuten

Angels Mods
Infinite Ores, Refining, Ore Processing ...
Moderator: Arch666Angel

Atomic Power
Power generation with atoms.
Moderator: Fatmice

Bob's mods
Some mods, made by Bob. Basically streaks every Factroio-area.
Moderator: bobingabout

DyWorld
DyWorld, the successor of DyTech. Adding new systems, items, fluids, machines and enemies! The Material System gives items like pipes and transport a real life feeling (Material property specific capacity/speed/range) and the Metallurgic System gives a new way to smelt ores. The Attribute System governs you! This means whatever you do, you get stronger from it!
Moderators: MagicLegend, Dysoch

F.A.R.L
The raillayer; must have, if you want to play with railway.
Moderator: Choumiko

Fentus Challenge & Tool Mods
No belts, no electricity for inserters and stuff like that.

Logistic Train Network
Adds new train stops forming a highly configurable logistic network.
Moderator: Optera

MoMods
Some mods covering weather, texture packs, transport, wind-turbine, reactor, interesting weapons and defense.
Moderator: ludsoe

Reika's Mods
All mods from Reika
Moderator: Reika

Resource Spawner Overhaul
Replaces resource spawning system, so that the distances between resources are much bigger. Railway is needed then.
Moderators: orzelek, Dark

Yuoki Industries
Energy production, weapons, handling fluids and much more - excellent graphics.
Moderator: YuokiTani

PyMods
pyanodon's mods are here
Moderator: pyanodon