Save/Load

js-dos supports saving and restoring game progress. You can play game from time to time without losing progress. It's working automatically while you don't change bundle url.

This feature works by dumping changes in file system into second bundle and use it to override original file system on next load. You can read more about actual implementation here.

Save/Load feature works automatically whenever player press save icon. However, game itself should support storing progress. Read detailed instructions how to deal with save/load in DOS.