: The changes should take effect immediately. Note that using mods in older versions of the game may disable Steam achievements unless specific patches are used. Popular Mods Often Found in RAR Format
: A massive fan expansion that requires a manual installation into a separate folder. The-Binding-of-Isaac-Rebirth.rar
: Use a tool like 7-Zip or WinRAR to extract the .rar file. : The changes should take effect immediately