This is a Larva Mortus patch. HOW TO INSTALL: A) MS Windows Unpack the patch file and copy the content of the patch file (directory game etc.) to the game directory. It is usually located in C:\Program Files\Larva Mortus\ B) MAC OS X 1. Go to the game folder, it is usually located at Applications/Larva Mortus 2. Right click to Larva Mortus application, then click to Show Package Content 3. Unpack the patch file and copy the content to a directory Resources of the Larva Mortus application If you have any problem, contact us via support page http://www.rakeingrass.com/support.php?game=larvamortus