SCP Craft is a mod pack that is designed for fans of the SCP Universe!
It features SCP-themed mods that add some of the most popular SCPs from the wiki into Minecraft, along with a mix of tech and magic mods to add more content to the game. Additionally, the pack has combat mods with guns, armour, and more. This pack is great for playing with friends, the mods used in the pack were curated for this purpose.

Notable Mods:

Techguns (for PvP combat)
AE2 and extensions (for storage)
Mekanism (ore processing / power generation / general tech)
Mystical Agriculture, Thaumcraft, Blood Magic, Astral Sorcery (magic mods that fit into the SCP universe well)
Many optimization mods
Chisel, Builders Wands, BiblioCraft (for decoration and building)

and so much more!

Recommended Configuration:
It is recommended to have a Java heap size of at least 3GiB, the game will work with just 3GiB but 5GiB would be better. It is also suggested to use Optifine with the pack for FPS increases and general optimization.
If you'd just like something you can copy-paste into your java heap arguments:

-Xmx3G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M

The SCP logo is from the SCP Wiki, and licensed under CC BY-SA 3.0

SCP Craft

Actually Additions

AppleSkin

Applied Energistics 2

Astral Sorcery

Baubles

Better Builder's Wands

BetterFps

BiblioCraft

Biomes O' Plenty

Blood Magic

Bonsai Trees 4

Buildcraft

CB Multipart

Chisel

CodeChicken Lib 1.8.+

CoFH Core

CoFH World

ConnectedTexturesMod

Construct's Armory

CraftTweaker