My goal for tModLoader it to make it simple as possible while giving the modder powerful control over the game. wld files, so you can also port modded players and worlds back to vanilla at the cost of losing your modded stuff. Modded content is saved in files separate from. Vanilla worlds and players can be ported to tModLoader worlds and players simply by copying over save files.
TModLoader saves worlds and players separately from vanilla worlds and players. This means you can easily make mods that are compatible with other people's mods, save yourself the trouble of having to decompile and recompile Terraria.exe, and escape from having to understand all of the obscure 'intricacies' of Terraria's source code. TModLoader is essentially a mod that provides a way to load your own mods without having to work directly with Terraria's source code itself. TModLoader is a tool for Terraria, created by blushiemagic.