Maybe you closed it out by accident? Only thing that makes sense. What are you trying to open it with? Notepad++ will say it's too big, Powershell will ignore you, basically cannot be opened. The only way to unpack it is to set up a batch file like this; Code: "C:\Program Files (x86)\Steam\steamapps\common\Starbound\win32\asset_unpacker.exe" "C:\Program Fies (x86)\Steam\steamapps\common\Starbound\assets\packed.pak" "C:\Program Files(x86)\Steam\steamapps\common\Starbound\unpackedAssets"