I understand you're asking about tModLoader compatibility with a cracked (non-legitimate) version of Terraria version 1.4.4.9.
Cybercriminals prey on this exact search term. Fake installers named tmodloader_crack_1449_setup.exe often contain: tmodloader for top cracked terraria 1449
While tModLoader (TML) is designed primarily as a Steam-integrated tool for the officially purchased version of Terraria Cracked version limitations : Since you're using a
Installing tModLoader (TML) for a cracked version of Terraria 1.4.4.9 Running tModLoader on a cracked copy often presents
Running tModLoader on a cracked copy often presents specific hurdles: Steam API Detection