Skysect: Hi I am sending a ticket about this but I compared Steam Starbound files with GOG files bit by bit and I found a lots of unnecessary stuff there . It's huge chunk of data . And making installer bigger . I did this for windows version and seems Mac and Linux version is fine because installer sizes are around 650 MB .

So ;

In the main directory ;

giraffe_storage folder
koala_storage folder

In the win32 directory ;

output folder
stdout.txt
unpack_assets.bat

In the win64 directory ;
stdout.txt

All of those folders and files inside of them are unnecessary and its 645 MB . It's nearly doubling the installer size :) Please fix it GOG !

I added them to the checksum file too

https://dl.dropboxusercontent.com/u/104287366/thrash.md5