There are three choices for Charles Reed at the ending of The Sinking : 1) Save the World 2) Save himself or 3) Just leave and forget about all the horrors he had experienced during his time at Oakmont. This video shows Charles Reed deciding to save himself and allowing the world be destroyed.
This is a Fan-made video. The Sinking City video game was developed by Frogwares and published by Bigben Interactive.