This modpack rocks

Dr. Mainkra is a modpack based on explotarion, building, and adventure. You can choose to play anyhow you want, but I encourage you to play using the Lost Cities > Biospheres generator.

You can explore infinite dimensions (really, Dim Doors is that great), you can loot infinite dungeons, and you can create infinite tiny potatoes!

Features present in this pack:

The latest and greatest tech mods
The most ominous and mysterious magic mods
Flat bedrock generation, for those who like a good ol' quarry
Full fledged alchemy systems with Project E!
Fun and quarky mod interactions
A complex pollution system

What makes this pack different:

If you play with the recommended settings, you'll feel a true survival experience as you try to survive and improve your situation. If you can, try to play it with some friends! You can have personal Biospheres, one for a mage, another one for the technician, and then join them together with railways!

Mod list:

Angel Ring To Bauble (by Portablejim)
Just Enough Resources (JER) (by way2muchnoise)
Better Builder's Wands (by Portablejim)
Simple Corn (by cleverpanda714)
Expanded Equivalence (by Zeitheron)
Hwyla (by TehNut)
Project EX (by LatvianModder)
Tinker I/O (by GKBm2011)
Living Enchantment (by Clownvin)
Mystical Agradditions (by BlakeBr0)
Shadowfacts' Forgelin (by ShadowfactsDev)
Actually Additions (by Ellpeck)
ViesCraft - Airships! (by Vies)
Morpheus (by Quetzi)
NotEnoughIDs (by fewizz_)
Tesla Core Lib (by face_of_cat)
ZeroCore (by ZeroNoRyouki)
Botania (by Vazkii_)
Ruins (Structure Spawning System) (by atomicstrykergrumpy)
Reborn Core (by modmuss50)
More Overlays (by FeldiM245)
The Beneath (by Shinoow)
Redstone Flux (by TeamCoFH)
Hammer (Lib) Core (by Zeitheron)
Ender Storage 1.8.+ (by covers1624)
Dynamic Trees - Pam's Harvestcraft Compat (by ferreusveritas)
Ultimate Car Mod (by henkelmax)
MeeCreeps (by McJty)
iChunUtil (by ohaiiChun)
Farming for Blockheads (by BlayTheNinth)
Placeable Items (by Ferdz_)
IE Cloche Compat (by senilepenguin)
Bookshelf (by DarkhaxDev)
EnderCore (by tterrag1098)
Sync (by ohaiiChun)
RFTools (by McJty)
Pam's HarvestCraft (by pamharvestcraft)
Bloodmoon (by Lumien231)
Lost Souls (by McJty)
Extreme Reactors (by ZeroNoRyouki)
PTRLib (by RazzleberryFox)
Building Gadgets (by Direwolf20)
FTB Utilities: Backups (by LatvianModder)
The Midnight (by cipher_zero_x)
The Aether (by GildedGames)
Morph-o-Tool (by Vazkii_)
PlusTiC (by landmaster_phuong0429)
Draconic Evolution (by brandon3055)
AbyssalCraft (by Shinoow)
BiblioCraft (by Nuchaz)
Random Things (by Lumien231)
Farseek (by delvr)
Refined Storage (by raoulvdberge)
Chisel (by tterrag1098)
Brandon's Core (by brandon3055)
MysticalLib (by EpicSquid319)
Immersive Engineering (by BluSunrize)
ConnectedTexturesMod (by tterrag1098)
Tropicraft (by Cojomax99)
Crafting Tweaks (by BlayTheNinth)
DimensionalDoors (by DimensionalDevelopment)
Oreberries (by josephcsible)
ProjectE (by SinKillerJ)
Quark (by Vazkii_)
Industrial Foregoing (by Buuz135)
AutoRegLib (by Vazkii_)
Construct's Armory (by TheIllusiveC4)
Thaumcraft (by Azanor13)
McJtyLib (by McJty)
Hunting Dimension (by DarkhaxDev)
Dynamic Trees - Traverse Compat (by odorousrex)
Streams (by delvr)
Mantle (by mDiyo)
Inventory Tweaks (by Kobata)
Tinkers' Complement (by KnightMiner)
Compact Machines (by davenonymous)
Controlling (by Jaredlll08)
Tinkers' Tool Leveling (by bonusboni)
Tinkers Aether (by Shnupbups)
Ender IO Base (by HenryLoenwind)
Ender IO Machines (by HenryLoenwind)
Ender IO Conduits (by HenryLoenwind)
Ender IO RS Conduits (by HenryLoenwind)
Blood Magic (by WayofTime)
ForgeEndertech (by EnderLanky)
General Layman's Aesthetic Spying Screen (GLASS) (by ohaiiChun)
Ender IO TiC (by HenryLoenwind)
Dynamic Trees - Thaumcraft Compat (by mangoose3039)
Cooking for Blockheads (by BlayTheNinth)
Immersive Petroleum (by Flaxbeard)
SwingThroughGrass (by exidex)
OreLib (by OreCruncher)
Yoyos (by jozufozu)
Mod Name Tooltip (by mezz)
FastWorkbench (by Shadows_of_Fire)
AppleSkin (by squeek502)
Future MC (by thedarkcolour)
Enchanting Plus (by DarkhaxDev)
Engineer's Doors (by nihiltres)
LibVulpes (by zmaster587)
Advanced Rocketry (by zmaster587)
FTB Utilities (by FTB)
Fast Leaf Decay (by olafskiii)
Blockcraftery (by EpicSquid319)
The Twilight Forest (by Benimatic)
Just Enough Items (JEI) (by mezz)
Baubles (by Azanor13)
Pollution of the Realms (by EnderLanky)
Iron Chests (by ProgWML6)
Tinkers Mechworks Fork (by crankysupertoon)
BetterFps (by Guichaguri)
Thaumic Tinkerer (by Nekosune)
Traverse Legacy (1.12.2) (by ProspectorDev)
ReAuth (by TechnicianLP)
Patchouli (by Vazkii_)
Minecolonies (by H3lay)
RandomPatches (by TheRandomLabs)
Compact Drawers (by samtrion)
FastFurnace (by Shadows_of_Fire)
MystAgrad Cloche Compat (by senilepenguin)
Reborn Storage (by modmuss50)
FTB Library (by FTB)
Diet Hoppers (by RWTema)
OpenModsLib (by OpenMods)
Mystical Agriculture (by BlakeBr0)
OpenBlocks (by OpenMods)
Roguelike Dungeons (by greymerktv)
Chameleon (by Texelsaur)
Dark Utilities (by DarkhaxDev)
Guide-API (by TehNut)
Weather, Storms & Tornadoes (by Corosus)
CoroUtil (by Corosus)
Tinkers' Addons (by oitsjustjose)
Tinker's JEI (by Possible_triangle)
Akashic Tome (by Vazkii_)
Just Enough Calculation (by towdium)
Refined Storage Addons (by raoulvdberge)
Bonsai Trees (by davenonymous)
Dynamic Surroundings (by OreCruncher)
Storage Drawers (by Texelsaur)
Dynamic Trees (by ferreusveritas)
Clumps (by Jaredlll08)
Chisels & Bits (by AlgorithmX2)
Tinkering with Blood Magic (by terrapin47)
Bedrock B Gone (by Karjah)
Tumbleweed (by konwboj)
[ANGRY PIXEL] The Betweenlands (by oily_oli)
Cucumber Library (by BlakeBr0)
Decocraft (by RazzleberryFox)
CodeChicken Lib 1.8.+ (by covers1624)
Ender IO (by CrazyPants_MC)
JourneyMap (by techbrew)
Neat (by Vazkii_)
Extra Utilities (by RWTema)
MalisisDoors (by Ordinastie)
MalisisCore (by Ordinastie)
Astral Sorcery (by HellFirePvP)
Mystic World (by EpicSquid319)
Roots (by EpicSquid319)
Tinkers Construct (by mDiyo)
The Lost Cities (by McJty)
FoamFix for Minecraft (by asiekierka)
Integration Foregoing (by Jackyy)