Version 2.5.4 - Recommended
More fish and fish are now biome specific
Website: http://www.aetherii.com/blog
That heavenly dimension...
Need more inventory space? Backpacks are your answer.
Provides extra inventory slots.
Working builders wands for 1.7.10+
Improve some game mechanics to improve FPS
Improves the Nether
Website: http://www.bibliocraftmod.com/
Adds lots of functional and decorative blocks.
Enhanced biome generation.
Website: http://www.minecraftforum.net/topic/1790919-1516forge-carpenters-blocks-v202-slopes-stairs-and-more/
Use almost any block as the texture for fences, doors, slopes, stairs, etc.
Library for Redstone Control
Additions of many new ways to "cut" blocks for appearance.
Core library for all Chicken Bones' mods.
Power production and storage, automated processing, energy/item/liquid transport. A cornerstone mod.
World generation for CoFH mods
Provides more support for connected textures on blocks
Multiblock kitchen and helpful books.
Improves features of the crafting table/grid.
Modify recipes and machine outputs
Various tools, resources, and machines.
Moveable light sources. Client only.
Major renovation to the End
Makes the end much more interesting
Add over a hundred flowers to the world!
Website: https://asie.pl/
Reduces memory usage of 1.10.x+ packs
Adds nicer furnaces with upgrades
Successor to Apple Milk & Tea
Library for Heat and Climate
A successor to Waila for newer MC versions
Bosses and gods walk among us... fear their wrath!
Automatically replace items/blocks/tools into your hotbar when they get used up.
Bigger, better, more expensive chests. Giggity.
Lets you add a server to the client's server.dat
JEI Integration for Harvestcraft
Addon for JEI
An "items interface" mod for 1.8.x.
A mod loading API which is much lighter than FML. Compatible with FML.
Multipart API
Website: http://www.minecraftforge.net/forum/
Minecraft Forge is a Minecraft API which allows almost maximum compatibility between other Forge mods.
Addon for CraftTweaker and MineTweaker
Fancy furniture.
Dependency mod for ModTweaker
Website: http://www.openblocks.info/
Many utility blocks and features.
Website: http://www.openblocks.info/
Core library used by OpenPeripheral.
Adds a ton of video settings and options with the hope of improving performance.
Major overhaul of crops, trees, etc.
Inventory monitoring and management
A recreation of EE2 in 1.7.10.
Modern take on the Deep Storage Unit
Allow client to reauth and regenerate session so client doesn't need restarting.
Core mod for Quantum Storage
Fancy redstone and wires
Power API
Multilevel dungeons generated in the world
Magic through natural "vanilla style" means.
Adds a few power generators
Dead simple storage integrated with vanilla style storage
Core mod for Practical Logistics
Magic in Minecraft.
Allows scanning of items in a player's inventory
Addon for JEI and Thaumcraft compatibility
Website: http://www.teamcofh.com/
Pipes, tubes, etc.
Website: http://www.teamcofh.com/
World spawning and library for TeamCoFH mods.
Like Treecapitator
Unicorns, giggity
Library for Simple Generators
Makes several "fixes" and performance improvements.
Website: http://www.circlecraft.info/
Configs for the Vanilla Plus modpack
Adds detail to the Waila tooltip about which tool is required to harvest the target block.
Visual boundaries for WE regions.
Minimap mod