There are 2 repositories under terraria-mod-loader topic.
The home of the Prism Mod, a mod for Terraria that aims to overhaul the game.
Sources for a tModLoader (Terraria mod loader) mod called Wormholes. This mod adds randomly-generated wormholes around the world to travel quickly between, along with some relevant associated gameplay mechanics.
A Simple Terraria Modding app made in CS and Python. Fork for my school account..
Generate a Portable Terraria, to run on USB
Starflower, a mod for Terraria using tModLoader.
Sources for a tModLoader (Terraria mod loader) plugin (mod) called The Lunatic. This mod is essentially a time-limited boss rush of Terraria's full vanilla boss lineup, with additional relevant gameplay mechanics (including the epinonymous Lunatic as a town NPC).
A Terraria Mod made with tModLauncher
A modification for Terraria using tModLoader
Repository for the Stargate Mod
Source code for a tModLoader (Terraria mod loader) plugin (mod) called Durability. This mod implements tool and armor usage wear and tear, and adds some relevant gameplay mechanics.
Sources for a tModLoader (Terraria mod loader) plugin (mod) called Lives. This mod adds a limit to the total deaths of a player, along with some relevant associated gameplay mechanics.
Sources for a tModLoader (Terraria mod loader) plugin (mod) called Stamina. This mod adds physical exertion limits for the player, along with some relevant associated gameplay mechanics.
The Supernova mod is a mod for terraria
A simple weapon/extras' addons for terraria.
Calamity Vanilla Item Recipe Changes mod adds the vanilla crafting changes from Calamity to vanilla Terraria
Utility Terraria mod for tMoLoader
A tool to work with tModLoader .tmod files.
Halocaster's Halorealm is a mod for Terraria.
Sources for a tModLoader (Terraria mod loader) plugin (mod) called Capitalism. This mod adds supply and demand-like markup to purchased items, along with some relevant associated gameplay mechanics.
Sources for a tModLoader (Terraria mod loader) plugin (mod) called Injury. This mod adds physical injuries (max health loss) for the player, along with some relevant associated gameplay mechanics.
Sources for a tModLoader (Terraria mod loader) plugin (mod) called Losing Is Fun. This mod adds various tweaks and gameplay features in the name of fairness (i.e. balance against cheese strats).
Music Maker mod for Terraria. Allows creating music in Terraria using note blocks.
Mod for tModLoader contain a powerfull set
tModLoader mod that introduces "Volpescu", a cool lumberjack that sells you QOF items.
A mod for Terraria that is dumb, brought to you by @Skeledan and @JustKurtle