This modpack is meant to be a one click, no headache pack.
The focus is to be friendly to long term multiplayer playthroughs.
It achieves this by adding as much new content to the game without compromising stability or balance.
In addition a lot of quality of life and visual mods are included to reduce headaches and make the world more enjoyable to be in.

This is a WIP and will be updated as more mods are found compatible/incompatible.
Furthermore, this list was based off 1.3, many of these mods have changed drastically since then and there may be some hidden incompatibilities, there will be some growing pains until most of these mods have fully matured into 1.4.4.

Previous versions of this pack attempted to include Thorium and Stars Above with balance adjustments.
I have removed these, in lieu of a more balanced, and expanded Calamity focused list.
These two mods are "compatible" in that nothing will break, but Calamities scaling far outpaces these two, no matter how much adjusting I did. Eventually, you will be absolutely destroying anything these mods throw at you with Calamities weapons, and the gear from these two mods won't even tickle the Calamity bosses. I do not recommend adding them.

Installation:

1. Make sure no other items are subscribed on the workshop.
   
2. Hit subscribe all on this collection.
   
3. Boot up tmodloader, go to workshop, hit enable all, hit back.
   
4. Read through the Quality Of Life Mod Settings, I recommend the I love Balance setting, but you do you.
   
5. Enjoy!

Important Settings and Warnings:

• I recommend playing on expert/master classic, other modes will probably break, especially journey mode.
  
• It could take a few tries to get a world gen correct with no overlaps, make sure you gen a large world for best chances.
  
• There are quite a few difficulties to play on, I recommend reading up on the calamity difficulties, infernum mode, and eternum mode before deciding which one will work best for you playthrough.

If you don't want any new decorations or ~flair~, then disable the following:
*If you are having performance issues, this will probably help.
*If you have performance issues, get a client-side lag removing mod. (Or download more RAM)

• Atmospheric Torches
  
• Better Blending
  
• Calamity Music Mod
  
• Improved Movement Visuals

Additional Mod Options:

• If you need a more feature-rich(bloated) vein miner, disable Basic Automated(Vein) Mining and grab Ore Excavator
  
• If you want AFK's pet's and more, add it and turn off bosses in it's mod config, they break multiplayer.
  
• Aequus, Atherius, Cerebral, Dragonball, Exalt, Final Fantasy, Gensoyko, Starlight River, and Vitality are all mostly compatible, just not added due to the already insane amount of content.
  
• Living World is only compatable if you disable Reobtainable in this list.
  
• If a major content mod is not listed here, it is likely because I tested it and it broke damn near everything(looking at you Mod of Redemption).
  
• If you decide to add any mods that change world gen, you have to disable remnants in this list or everything breaks.

I attempted to stick with content mods that have decent wikis associated with them.
If you are having trouble progressing in a particular mod, I recommend looking at boss checklist or filtering the item browser to that mod to see what seems craftable and go from there.

Why is _____ not in the pack?
It most likely either does not work in multiplayer, there is a better alternative, is bloated with unoptimized scripts that cause lag, or completely unbalances the game.

Any additions to this modpack are untested, please do not add a bunch of random ♥♥♥♥ and expect it to work.
Please leave mod suggestions, bugs, etc, in the comments below.

Image credits go to:
Awko-Talko on deviantart
pixelartmaker