Save and Quit (‘Ctrl-x’)
To save your game so that you can return to it later, use this command. Save files will also be generated (hopefully) if the game crashes due to a system error. After you die, you can use your savefile to play again with the same options and such.
Save (‘Ctrl-s’)
This command saves the game but doesn’t exit Angband. Use this frequently if you are paranoid about having your computer crash (or your power go out) while you are playing.
Quit (Q)
Kills your character and exits Angband. You will be prompted to make sure you really want to do this, and then asked to verify that choice. Note that dead characters are dead forever.