Yeah, I know. I like this game. At start I was sure it it "10 minutes game" - got 10 keys and end. I was surprised when discovered it is not end.
More, please :)
Viewing post in Colonos ZX (ZX Spectrum) comments
The end of the game is in a game I made last year:
https://manuel-gris-umpierrez.itch.io/rescate-en-marte-mars-rescue
Greetings and thanks for playing it.