For many years I have been trying to remember the name of a game I played on an early Mac around 1985 or 1986. In it, you were a space captain whose ship had crash-landed and broken into parts. You had to explore the world and find the missing pieces. As you walked along you would encounter various humanoids and other creatures. Some would smile and become your friend (helping you in battle); others would attack. I remember certain trees would drop apples that gave you energy, and also that, later in the game, you could find a jetpack that allowed you to hover over certain obstacles and access more of the world. Does anyone remember this game? I loved it so much as a kid and have not been able to find any information about through various descriptive searches.