tModLoader Mod List

https://forums.terraria.org/index.php?threads/.60369/

(Check the mod's homepage for trailers & screenshots)

This is a huge mod, which, instead of adding new content to the game, focuses on adding new gameplay mechanics and completely remaking existing ones.
It remakes melee, ranged and magic combat, adds seasons, dodgerolls, block climbing, walljumps, wallrolls, atmospheric sounds & footsteps, emotes, a weakness & resistance system, makes gore ridiculously enjoyable, adds blood on tiles, a fire and an electricity systems, makes everything more interactive, enhances enemy ai, completely remakes player rendering, makes trees fall like in starbound, and does a thousand more things i can't even memorize.
Believe me, it's colossal.

http://forums.terraria.org/index.php?threads/boss-checklist-in-game-progression-checklist.50668/

Improved boss checklist
View more information about bosses
Set new records for the bosses you fight
Boss loot and collectible checklists

Boss despawn messages display in chat
Boss radar for bosses that are off-screen
Respawn timer appears while dead
Certain items like treasure bags appear on the map
"> Boss Checklist lets you view a boss checklist while playing so you can progress through bosses as you can handle them.

Toggle the checklist with the hotkey assigned to it in the settings. Visit 'Settings->Controls->Keybindings' to set or check the current hotkey.

If you would like a mod to be supported, please encourage the modder to add support to this mod.

Introducing the Boss Log, which enhances the traditional boss checklist experience with customization and features with configs.
Improved boss checklist
View more information about bosses
Set new records for the bosses you fight
Boss loot and collectible checklists

Boss despawn messages display in chat
Boss radar for bosses that are off-screen
Respawn timer appears while dead
Certain items like treasure bags appear on the map

http://forums.terraria.org/index.php?threads/cheat-sheet.41407/

Cheat Sheet is a tool for developers and those who just want to play around with any vanilla or mod item, recipe, or NPC. There are also tools to "paint" tiles to make building easier and faster.
Press K (or whatever hotkey you've assigned to "Toggle Cheat Sheet Hotbar") or click the button at the bottom center of your screen to view the Cheat Sheet Hotbar to access all the items. Press/Click again to hide it along with the selected item.

With the config, you can set tools to only be available to the host in multiplayer if you wish.

If you are using HEROsMod, you can selectively allow usage of tools in multiplayer. All the tools will be limited by the permissions assigned to your user.

See below for mod details, please note some buttons have a right-click feature as an addition to left-click.

Item Browser:
Click an item to grab a full stack of that item or Shift-click to move a full stack of that item immediately to your inventory. Right click to grab one, hold right click to grab quickly. The category buttons and the search field can be used to filter the list of items.

NPC Browser:
Click any NPC to spawn it in front of your character. Use categories and search filter to find the NPC you desire.

Recipe Browser:
Click on any Recipe to see details. Use categories and search filter to find the recipe you want.

Paint Tools:
Click to reveal the Paint Tools shelf.
--Eye Dropper: Use cursor to select tiles.
--Paint Tiles: Click to paint selected tiles. Click and drag to paint a tiled instance of selected tiles. Hold shift while dragging to constrain movement vertically or horizontally. Be very careful, stray clicks will override tiles and there is no undo function yet.
--Pallet Window: Store several tile selections.
--Schematics Browser: Submit builds to the schematics browser and explore other builds.

Extra Accessory Slots:
These slots appear to the left of your equipment. They will not affect you visually, but do affect stats as normal. Untested in multiplayer.

Auto-Trash Slot:
Now it's own mod, look for it on the Mod Browser.

Quick Clear Menu:
Use this menu to quickly clear either: items, projectiles or (de)buffs. Some features are untested in multiplayer.

Vacuum:
Left click to vacuum all current items in the world to you.
Right click to permanently vacuum items to you (until you stop playing or disable).

Quick Waypoints:
Left click to browse quick waypoints, this currently includes teleport to: spawn, hell, lihzahrd altar, dungeon and a random place.
Please note: temple teleport only works if there's a Lihzahrd Altar.

NPC Butcher Menu:
You can butcher (kill) hostile NPCs as well as Town NPCs using the Butcher menu.
This is programmed to exclude Target Dummies, Banners and Cultist spawned near the dungeon.

Spawn Rate Multiplier:
Cycle through settings for manipulating a spawn rate multiplier. (Spawn limit also affected) Fun for a challenge.

LightHack:
See through the darkness.

Next Update: Event Manager:
Start or stop all events.

Next Update: Boss Downer:
Allows you to set various bosses as defeated in the world.

Mod Extension Cheats:
Any cheats added by other mods will appear here. See the mod thread for info on how to add your own cheat buttons.

More tools will be added over time. Your input is highly appreciated, which you can leave by the Cheat Sheet forum post.

https://discord.gg/cKh6nyrSE7

Infernum

This difficulty is harder than Death mode and can be activated with the Infernal Chalice when Revengeance Mode is active.
The primary focus of the mod is expansive reworking of boss AIs.

Possible plans to add custom music, items, and exclusive bosses in the future.... maybe.
Some bosses may gain (unnecessary) extra phases for maximum "It's not over yet!" energy.

NOTE: As of now, only Pre-HM (along with some HM) boss AIs are included, and bosses may be subject to rebalancing.
Furthermore, the mod is not supported for multiplayer at this time."> An extension mod for Calamity that adds an extra difficulty - Infernum

This difficulty is harder than Death mode and can be activated with the Infernal Chalice when Revengeance Mode is active.
The primary focus of the mod is expansive reworking of boss AIs.

Possible plans to add custom music, items, and exclusive bosses in the future.... maybe.
Some bosses may gain (unnecessary) extra phases for maximum "It's not over yet!" energy.

NOTE: As of now, only Pre-HM (along with some HM) boss AIs are included, and bosses may be subject to rebalancing.
Furthermore, the mod is not supported for multiplayer at this time.

Mages' Paradise is a mod that plans to make the mage class better and more enjoyable.

7 Spellbooks; 6 of which have 4 tiers the last combining all 6
1 dagger with 5 tiers
2 Swords with 6 tiers(More being added)
10 Projectiles

There is more items being added soon.
Anyone who wishes to have ideas can add me on Discord.
Discord Username: Kor'goth#8441
Discord Server: https//discord.gg/NxJGQX4

https://forums.terraria.org/index.php?threads/primordials-mod.112518/

Warning! PLEASE READ

This mod is no longer being developed! Instead, it is being completely rebuilt from the ground up due to many porting issues to tModloader 1.4.



Note: The final version of this mod only comes with one new boss. It's a mostly complete post-golem boss. It can only be summoned through Cheatsheet or Hero's mod. Just search for "Moros" and enjoy!

http://forums.terraria.org/index.php?threads/heros-mod-creative-mode-server-management-and-over-25-tools-1-3-1-1-compatible.44650/

HERO's mod is a tools mod. It is a pick and choose server mod that allows you to decide how you want to run your world. You can turn on and off any features and you can allow different groups to use some but not all features. This tool has full group management with a GUI.

There are over 25 tools and many more in development. These tools aim to allow you to better manage a server without having to use slash commands in Terraria's chat. There is a full interface in game that you can use to preform actions.

This mod also works for single player.

Please check out the Forum post for more information.

https://forums.terraria.org/index.php?threads/alchemistnpc-v8-0.52798/

This mod adds 9 NPCs (Alchemist, Brewer, Jeweler, Young Brewer, Operator, Architect, Tinkerer, Musician and Explorer), who sell potions, materials and some other stuff.
New combinations of potions are sold by the Young Brewer.
The spawn condition for the Alchemist, the Jeweler, the Tinkerer & the Brewer is to kill the Eye of Ctulhu.
The Young Brewer spawns while both the Alchemist & the Brewer are in the world in Hardmode.
The spawn condition for the Operator is to kill EoW/BoC and to have a Wing of the World inside a free housing.
The Architect will come if you have at least 3 NPC.
The Musician will come if you defeat Skeletron.
The Explorer is a secret NPC. Try to figure out, how to spawn her.
Full Mod Config support.
Mod's Discord: https://discord.gg/WGKyKun
v9.4.2
-Disable shop changing delay when autopause is on and allow 0 delay for disabling with autopause off
-Fix UI scale not being 100% drawing the lifeform analyzer arrow in the wrong place
-Rebalance endgame Calamity bag price
v9.4.1
-Fix with shops and multiplayer.
v9.4
-Fix fishron bag condition
-Fix doubled endurance/damage reduction effect on battle comb
-Add delay to before shop change can happen
-Optimize locator arrow code
-Add Calamity 1.5 treasure bags
v9.3
-Added Old Duke's bag in Operator's modded bags shop.
-Added Sulphurskin Potion to Brewer's shop.
-Fishron booster now makes Fishron mount always accelerated.
-Widened array of blocks Terrain Reformer can dig.
-Now Penetrator properly kills the player if drains his last 3 hitpoints.
-Now Xenomorphic Mystery Meteorite is just Mystery Meteorite.
-Hopefully fixed random Knuckles spawns in MP.
-Kinda fixed earrape sound of Dimensional Casket.
-Fixed Elements Awoken-related error in Operator's code.
-Fixed Calamity mod's Rage and Adrenaline related mechanics.
-Fixed Chandeliers prices.
-Changed prices of Marble and Granite blocks.
-Some code polishing.
-Renewed sprites for Reversity Coins and Boom Box.
v9.2.1
-Fixed Cracked Crown wasn't collecting souls without Mod of Redemption.
v9.2
-Added support for Elements Awoken mod for Operator.
-Added support for Mod of Redemption for Operator.
-Now Paper Tubes may drop from some modded bosses.
-Now Antibuff mode shouldn't affect buffs with duration less than 30.0001 second.
-Changed Operator's coins menu a bit.
-Added afterimages for some projectiles.
-Added all Broken Hero stuff from Vanilla/Thorium/Spirit/Litho's Armory mods.
Available after beating Golem.
-Added Solar Veil to Operator's shop.
Available after beating Plantera.
-Added Boom Box to Musician's 3rd shop.
Allows to passively play music boxes placed in the last inventory slot.
-Added Armor's module "Barrage" accessory. Support any your attack with some energy balls.
Available after beating Moon Lord.
-Now Mythril/Orichalcum Anvil can be bought from Architect after beating any mechanical boss and breaking at least 2 altars.
-Now Adamantite/Titanium Forge can be bought from Architect after beating any mechanical boss and breaking at least 3 altars.
-Added recipes for Obsidian, Honey and Crispy Honey blocks.
-Added Calamity mod's Tesla Potion to Brewer's 2nd shop.
-Added rewards for reaching 12500 and 15000 souls counter on Cracked Crown.
-Nerfed Big Bird's Lamp.
Now it pierces Ichor immunity after beating Plantera, inflicts Betsy's Curse after beating Golem and pierces Betsy's Curse immunity after beating Moon Lord.
-Now Paradise Lost Wings actually increases run speed.
-Reworked Symbiote accessory. Its stats now depending on world state.
Cannot be crafted anymore. Can drop at the end of Blood Moon with 20%.
-Resprites for Cera Sumat legendaries (Holy Avenger by Logar8521#0059 and The Light of Cera Sumat by Shade) and new Explorer sprite.
-Fixed Snatcher souls counter exploit with Sludge Blobs from Mod of Redemption.
-Fixed Chaos Bomb hitbox colliding with ground too early.
-Fixed XtraT's and Enchanced Shroomite's electric bolts being able to hurt player.
-Fixed mod's NPC summoning items not working.
-Fixed Materia Transmutators not working as Thorium Anvil and Arcane Armor Fabricator.
-Fixed cycled sound of Blinker accessory.
v9.1
-Finally fixed all Paper Tubes MP desynchronizations.
-Fixed mod's drops from Moon Lord with Calamity mod active.
This related to Reversity Coins, Torn Note, Paper Tube and National Ugandan Treasure.
-Buffed all legendary weapons.
-Buffed some EGO weapons (In the name of Love and Hate).
-Added Simulation Control Unit to Operator's EGO shop. Allows to control weather (rain, blizzard, sandstorm) and time.
Available in hardmode (after beating any mech boss if coins drop is disabled).
-Added Terrain Reformer to Operator's EGO shop. Pickaxe with right click function.
Available after beati