When asks you "New?" Put "Y" to create a new Put "N" to paste a saved When putting blocks: Click on a placed block = remove 1 key = Cobblestone 2 key = Grass S = Save (triple click in first item and CTRL + C) If game suddenly stops with a sound, the sound is Windows 10 Foreground! :P which means there was an error on something
I made with TurboWarp You can test it in TurboWarp so it doesn't crash while placing blocks: https://turbowarp.org/1369259754
