Collecting gold bullion coins in a computer game

Long, long time ago when I was a child, maybe I was eleven or twelve years old, I really loved playing computer games. I could spend my all free time on playing my favourite games. Of course the games weren"t so modern like today"s games. Obviously, what you can see in contemporary computer games is really amazing. Then the sound was worse and the graphics was also very simple, not so well developed and not so advanced. I played my games using Commodore computer and instead of CD I had tapes. I had one favourite game called "The gold miner". You had a miner who was working in a mine and while walking along the corridors in this mine, he had to collect gold bullion coins which then you could exchange in a shop into equipment and additional tools which helped you to collect even more bullion coins. The more gold bullion coins you had the better equipment you could get. Of course, this wasn"t so simple, additionally my hero had to fight with different creatures. Being honest, I don"t really know why I liked this game so much but I could really spend the whole day playing. It was very relaxing. Today I don"t play computer games at all because I don"t have time for that and computer games are definitely time killers.