Into the Otherworld

Removed Mods
Audio Manager - Oops.
Crawler - Causes server crashes
Dynamic Stealth - Causes server crashes
Voidcraft - Abandoned project, some issues that can't be fixed with config change

Added Mods
Abyssalcraft - Fills the spooky mystical dimension void (heh) left by the removal of Voidcraft, adds its own stuff
Abyssalcraft Integration - Mod integration for Abyssalcraft, notably Tinkersmelting its metals and Thaumcraft warp for fighting eldritch horrors

Akashic Tome - Somewhere to hold all those goddamn guide books
Backstab - Pseudo-replacement for DynamicStealth that adds backstabbing (gee)
Doomlike Dungeons - Taking its place back on the dungeon generation throne

Hooked - Simple and easy grappling hooks
Treasure2 - Wanted to have a treasure hunting mod for a while, just never knew if one existed for 1.12

Updated Mods
Arcane Archives - to 0.2.0.3

Armory Expansion - to 1.3.3
Astral Sorcery - to 1.10.20
Colytra - to 1.2.0.3
Corail Tombstone - to 3.5.6
Journeymap - to 5.5.5
LibraryEX - to 1.0.9
Matchlock Guns - to 6b
Mystic World - to 1.4.1
Mysticallib - to 1.3.2
NetherEX - to 2.0.10
Quark - to r1.6-177
Roots - to 3.0.6
Twilight Forest - to 3.9.984

Changed Configs

Abyssalcraft - Lowered Abyssal biome generation weights to 2 each (was 5), Disabled Dreadlands spreading, Lowered Evil Animal spawn weight to 10 (was 20), Disabled Liquid Coralium transmutation outside of its dimension, Disabled Shoggoth ooze spreading, Lowered chance of Shoggoth Lairs to spawn in Rivers to 15 (was 30), Disabled Shoggoth acid spit breaking blocks

Backstab - Disabled built-in daggers, Added in mod daggers and knives to the backstab whitelist

Cuisine - Disabled giving a book on startup to match similar settings for other mods

Custom Backgrounds - Changed background to the Chisel primal voidstone texture

Ore Excavation - Switched to keybind mode instead of sneak mode, make sure to set a key for it

Treasure 2 - Disabled wither fog and gravestone generation
Probably some I forgot about while playtesting

Also removed a number of vestigial configs and disabled integration modules for mods that aren't in the pack