Aaagh, forget where i asked about the greenhouse above. I found it in detail below task... Silly me!
Very good game and am happy someone with coding skill made this natively for the C64. It reminds me a bit of 'reunion' i played back in the day as well as a recent game on the PC, forgot the name, but was basically about 12 or so characters in the Siberian wilderness scavenging to stay alive. The gameplay and layout is surprisingly very similar to this game.