Descent Into Madness

Introducing:

Advanced Rocketry by zmaster587

Adventure Backpack by JavierDarkona

AE2 Stuff by bdew
Agricraft by InfinityRaider 
AOBD by ganymedes01
AOBD Singularities by RCXcrafter
Apple Milk and Tea 2 by RazzleberryFox 
Applied Energistics 2 by AlgorithmX2 
Animus by TeamDman and Saerethlb 
Aroma1997's Dimensional World by Aroma1997 
Automagy by Tuhljin 
Avaritia by SpitefulFox 
Avaritia Addons by WanionCane 
Better Questing by FunWayGuy 
Better Questing: Standard Edition by FunWayGuy 
BiblioCraft by JDSinclair 
BiblioWoods (BiomesXL) by JDSinclair 
BiblioWoods (Forestry) by JDSinclair
BiblioWoods (Natura) by JDSinclair 
Big Doors by jaquadro 
Big Reactors by ErogenousBeef 
Binnie Mods by Binnie567 
Birds Nests by cleverpanda714 
Blood Arsenal by Arcaratus 
Blood Magic by WayofTime 
Botania by Vazkii 
CandyCraft by valentin4311 
Carpenters Blocks by Syntaxial 
Chisel by tterrag1098, Drullkus, and Minecreatr 
Chisel Tones by TehNut 
ChocoCraft by clienthax 
ComputerCraft by dantwohundred 
Cooking for Blockheads by BlayTheNinth 
Cosmetic Armor Reworked by ZLainSama 
Custom NPCs by Noppes 
DecoCraft 2 by RazzleberryFox 
Dense Ores by RWTema 
Enchanting Plus by Darkhax 
Enchiridion by joshiejack 
Ender IO by CrazyPands_MC 
Ender IO Addons by Henry_Loenwind 
Ender Storage by chicken_bones 
EnderTech by CarrotCodes 
EnderZoo by CrazyPants_MC 
Eternal Singularity by KingWealthyturtle
EvilCraft by kroeser 
Experience Rings by MrComputerGhost 
Extra BiomesXL by Annysia 
Extra Cells by DrummerMC 

ExtraTiC by JeanGlassmaker
Extra Utilities 2 by RWTema 
Fairy Lights by pau101 
Forbidden Magic by SpitefulFox 
Forestry by SirSengir 
Gadomancy by makeoo 
Gany's End by ganymedes01 
Gany's Nether by ganymedes01 
Garden Stuff by jaquadro 
Gendustry by bdew 
Grapple Mod by Yyon 
Grimoire of Gaia by Silentine 
Growthcraft Community Edition by Alatyami 
Grue by Shinoow 
Hardcore Ender Expansion by chylex 
Hats by iChun 
Iguana Tinker Tweaks by bonusboni 
Inventory Pets by Purplicious_Cow 
Inventory Tweaks by Kobata 
Iron Backpacks by gr8pefish 
Iron Chest by progwml6 
Jabba by ProfMobius 
Jaffa Foods (A HarvestCraft Addon) by Murdy007 
Magical Crops by Mark719 
Magical Crops Armoury by Mark719 
Magical Crops Decorative by Mark719 
Magic Bees by MysteriousAges
Malisis Doors by Ordinastie 
Mariculture by joshiejack 
Minecraft Comes Alive by WildBamaBoy 

Mekanism by aidancbrady 
Mekanism Generators by aidancbrady
Mekanism Tools by aidancbrady 
Minechem by jakimfett 
Modular Powersuits by MachineMuse 
More Player Models by Noppes 
Morpheus by Quetzi 
MrCrayfish Furniture Mod by Mr_Crayfish 
Natura by mDiyo 
NEI Addons by bdew 
NEI Integration by tonius111 
Nether Ores by skyboy026
Nodal Mechanics by Shukaro 
No More Recipe Conflict by Oliv1er 
Not Enough IDs by fewizz 
Not Enough Items by chicken_bones 
Not Enough Resources by Way2muchnoise 
Not Enough Thaumcraft Tabs by fewizz 
OpenBlocks by OpenMods 
Pam's HarvestCraft by MatrexsVigil 
Platforms by ShetiPhian
PortalGun by iChun 
Project Red - Base by Mr_TJP 
Project Red - Compat by Mr_TJP 
Project Red - Integration by Mr_TJP 
Project Red - Lighting by Mr_TJP 
Project Red - Mechanical by Mr_TJP 
Project Red - World by Mr_TJP
Quantum Storage  by Gigabit1011 
RailCraft by CovertJaguar 
Random Things by lumien231 
Recurrent Complex by Ivorforce 
Redstone Armory by TehNut 
Redstone Arsenal by TeamCoFH 
Reliquary v1.3 by P3pp3rF1y 
RFTools by McJty 
Roguelight Dungeons by Greymerk
Sanguimancy by Tombenpotter 
Secret Rooms Mod by AbrarSyed 
Solar Expansion by TedTheRusSB624 
Soul Shards - The Old Ways by SgtPunishment 
Starminer by あるべ 
Steves Addons by hilburn 
Steves Factory Manager by Vswe 
Storage Drawers by jaquadro 
Storage Drawers (Forestry) by jaquadro 
Storage Drawers (Misc) by jaquadro 
Storage Drawers (Natura) by jaquadro 
Tails by KitsuneKihira 
Tainted Magic by yorkeMC 
ThaumCraft Inventory Scanning by BlayTheNinth 
ThaumCraft Node Tracker by Dyonovan 
Tinkers Construct by mDiyo 
Technomancy by Theflogat 
ThaumCraft by azanor 
ThaumCraft Mob Aspects by Parker8283 
ThaumCraft NEI Plugin by DjGiannuzz 
Thaumic Energistics by Nividica 
Thaumic Exploration by nekosune
Thaumic Horizons by TheKentington 

Thaumic Tinkerer by nekosune

The Spice of Life by squeek502
Thermal Dynamics by TeamCoFH
Thermal Expansion by TeamCoFH 
Thermal Foundation by TeamCoFH 
Thermal Singularities by WanionCane

TiC ToolTips by Squeek502
Tinker IO by gkbm2011
Totemic by ljfa 
TrainCraft by Mrbrutal 
Traveller's Gear by BluSunrize
Tumbleweed by konwboj 
Universal Singularities by KingWealthyturtle 
Waila by ProfMobius 
Waila Plugins by tterrag1098 
Warpbook by panicnot42 
Wawla by Darkhax 
Wireless Crafting Terminal by TheRealp455w0rd 
Witchery by Emoniph 
Witching Gadgets by BluSunrize 
Yarr Cute Mob Models by yarrmateys 
Ye Gamol Chattels by Ivorforce 
ZTones by riciJak 

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Client-Side Only:

- Baby Animals Model Swapper by MrIbby
- FastCraft by sfPlayer
- Journey Map by techbrew
- ReAuth by TechnicianLP 
- Mouse Tweaks by YaLTeR97
- TabbyChat 2 by mattmess1221