With dozens of dimensions and bosses to conquer, this pack offers tuns of things to explore and discover. Huge long dungeons that beckon you, the risk is high but the rewards make it more than worth it.

features:

Dozens of new structures

Dozens of new dimensions

xp can be used to upgrade skills

tons of new weapons and armor

many new ways to mob grind

many new ways to destroy your foes

tons of new decoration blocks

unofficial

not affiliated with advent of ascension devs

Mod list:

Smooth Font (by bre2el)
AppleCore (by squeek502)
Angel Ring To Bauble (by Portablejim)
Just Enough Energistics (JEE) (by TheRealp455w0rd)
Inventory Sorter (by cpw)
RFTools Power (by McJty)
Hwyla (by TehNut)
Overloaded (by cjm721)
Shadowfacts' Forgelin (by ShadowfactsDev)
Actually Additions (by Ellpeck)
Ruins (Structure Spawning System) (by atomicstrykergrumpy)
IvToolkit (by Ivorforce)
Multi Mine (by atomicstrykergrumpy)
Woot (by Ipsis)
Hammer (Lib) Core (by Zeitheron)
Waystones (by BlayTheNinth)
FPS Reducer (by bre2el)
Placebo (by Shadows_of_Fire)
ElecCore (by Elec332)
Deconstruction Table (by bdkuhman)
Better Advancements (by way2muchnoise)
Tool Belt (by gigaherz)
VoxelMap (by MamiyaOtaru)
Forestry (by _ForgeUser7678633)
GraveStone Mod (by henkelmax)
Bookshelf (by DarkhaxDev)
SimpleHarvest (by TehNut)
Snad (by TheRoBrit)
WanionLib (by WanionCane)
Doomlike Dungeons (by JaredBGreat)
AE2 Stuff (by bdew)
RFTools (by McJty)
NetherEx (by LogicTechCorp)
OpenBlocks Elevator (by vsngarcia)
Idō (by bagu_chan)
Building Gadgets (by Direwolf20)
Mo' Bends (by iwoplaza)
Waila Harvestability (by squeek502)
AI Improvements (by DarkGuardsman)
Client Tweaks (by BlayTheNinth)
Tiny Progressions (by Kashdeya)
Open Terrain Generator (OTG) (by team_otg)
Phosphor (by jellysquid_)
BiblioCraft (by Nuchaz)
Carry On (by Tschipp)
Random Things (by Lumien231)
Refined Storage (by raoulvdberge)
Wither Skeleton Tweaks (by Shadows_of_Fire)
Wawla - What Are We Looking At (by DarkhaxDev)
CraftTweaker (by Jaredlll08)
B.A.S.E (by lanse505)
Advent of Ascension (Nevermine) (by Scimiguy)
Ore Excavation (by Funwayguy)
Mob Grinding Utils (by vadis365)
Trumpet Skeleton (by jamieswhiteshirt_)
Quick Leaf Decay (by Lumien231)
Quark (by Vazkii_)
AutoRegLib (by Vazkii_)
Construct's Armory (by TheIllusiveC4)
McJtyLib (by McJty)
Hunting Dimension (by DarkhaxDev)
Mantle (by mDiyo)
ExtraCells2 (by Destroyer7128)
AmbientSounds 3 (by CreativeMD)
UniDict (by WanionCane)
Inventory Tweaks (by Kobata)
Tinkers' Tool Leveling (by bonusboni)
XP From Harvest (by ReaIGecko)
BdLib (by bdew)
Chunk Animator (by Lumien231)
Enchantment Descriptions (by DarkhaxDev)
MTLib (by Jaredlll08)
OreLib (by OreCruncher)
Recurrent Complex (by Ivorforce)
Mod Name Tooltip (by mezz)
Hopper Ducts (by FyberOptic)
FastWorkbench (by Shadows_of_Fire)
VanillaFix (by Runemoro)
Biome Bundle (by mc_pitman)
LootBags (by Malorolam)
Gobber [FORGE] (by kwpugh)
AppleSkin (by squeek502)
Enchanting Plus (by DarkhaxDev)
Simple Generators (by ValkyrieofNight)
Apotheosis (by Shadows_of_Fire)
Just Enough Items (JEI) (by mezz)
Baubles (by Azanor13)
Iron Chests (by ProgWML6)
BetterFps (by Guichaguri)
ValkyrieLib (by ValkyrieofNight)
Overloaded Armor Bar (by tfarecnim)
LibraryEx (by LogicTechCorp)
FastFurnace (by Shadows_of_Fire)
Faster Ladder Climbing (by maddachshund)
Applied Energistics 2 (by AlgorithmX2)
The Aether II (by GildedGames)
FTB Library (by FTB)
OpenModsLib (by OpenMods)
Mystical Agriculture (by BlakeBr0)
OpenBlocks (by OpenMods)
Fancy Block Particles (by TominoCZ)
Roguelike Dungeons (by greymerktv)
Guide-API (by TehNut)
XL Food Mod (by mariot7)
Tinker's JEI (by Possible_triangle)
Spartan Shields (by ObliviousSpartan)
Level Up! Reloaded (by BeetoGuy)
Visuals (by Zeitheron)
Dynamic Surroundings (by OreCruncher)
Clumps (by Jaredlll08)
Actually Baubles (by Jackyy)
Railcraft (by Covert_Jaguar)
Huds - Armor Status & Damage Indicators (by Elec332)
Cucumber Library (by BlakeBr0)
TrashSlot (by BlayTheNinth)
Nature's Compass (by Chaosyr)
Extra Utilities (by RWTema)
Neat (by Vazkii_)
MalisisDoors (by Ordinastie)
MalisisCore (by Ordinastie)
Tinkers Construct (by mDiyo)
FoamFix for Minecraft (by asiekierka)

More will be added

Optifine is always recommended: https://optifine.net/adloadx?f=OptiFine_1.12.2_HD_U_E3.jar&x=da4e

advent of ascension modpack