I always thought that exp was never used in a productive way in vanilla. I played RPGs like g.u.r.p.s and Dungeons and Dragons growing up and liked the idea of adding a leveling system to Minecraft. I have put together a pack that uses the experience you gather to level your abilities and items/tools. i tried to make the pack as light as possible under 30 mods so that people with weaker computers can play it. I am implementing guests that require you craft items to help you survive better. you only start off with 5 hearts or less depending on difficulty level and the environment itself can cause you damage if its to hot/cold. i have only provided the back drop, the story is yours to write. where to next brave adventurers.

this mod pack contains the following mods.

JourneyMap (by techbrew)
Extra Utilities (by RWTema)
Mantle (by mDiyo)
Tinkers Construct (by mDiyo)
Mekanism (by aidancbrady)
Mekanism Generators (by aidancbrady)
Mekanism Tools (by aidancbrady)
Tinker I/O (by gkbm2011)
CompatLayer (by McJty)
PlusTiC (by Landmaster_phuong0429)
Inventory Tweaks (by Kobata)
Just Enough Items (JEI) (by mezz)
FTBLib (by FTB)
FTB Utilities (by FTB)
BiblioCraft (by JDSinclair)
Tinkers' Tool Leveling (by bonusboni)
Fast Leaf Decay (by Olafskii)
Hardcore Questing Mode (by lorddusk)
Level Up! (by BeetoGuy)
Tough As Nails (by Glitchfiend)
p455w0rd's Library (by TheRealp455w0rd)
Tough Expansion (by TheRealp455w0rd)
Actually Additions (by Ellpeck)
Cyclic (by Lothrazar)
Substratum (by EXTER7)
Pam's HarvestCraft (by MatrexsVigil)
Bloodmoon (by lumien231)
Chisel (by tterrag1098)

PenumbraPack

Actually Additions

AppleCore

Aquaculture 2

BiblioCraft

Bloodmoon

Chisel

Chisels & Bits - For Forge

CompatLayer

Cyclic

Extra Utilities

Fast Leaf Decay

FTB Library (Forge) (Legacy)

FTB Utilities (Forge)

Hardcore Questing Mode [FORGE/FABRIC]

Inventory Tweaks [1.12 only]

JourneyMap

Just Enough Items (JEI)

Level Up! Reloaded

Mantle

Mekanism