you can find all versions (up to 1.4.2 iirc) on archive.org archive.org/details/terrariapc, make sure to rename your terraria folder to avoid corrupting your 1.4 saves tho
@yoshomaylol you can now play terraria 1.0.6 (which ig isnt the exact same but still very similar) right away without doing anything with resource packs, that's why I thought the video kinda aged poorly (im not tryna hate, loved the video anyway)