TModLoader

tModLoader is a Mod Manager for terraria. It is currently only available on Steam.

tmodLoader was originally a 3rd party software until it was announced to be released on may 16th 2020 along side Journeys end as DLC for terraria on steam.

tModLoader and vanilla terraria act as separate games on steam, characters, worlds, achievements and other statistics are not shared between each other. Terraria is still required to be bought and installed to run tModLoader.