[emufan]

Energy: http://hol.abime.net/4309 (source files linked to from HOL though can't find it on the external website)

link to the game is: hxxp://chomikuj.pl/VImotheP/Amiga+Dema+Gier/E
then scroll down the website, and you will see the listing of this folder:
Energy (demo-playable).adf -> in the popup click "Pobierz"