The object of the game is to collect as much treasure as possible, visit as many different locations as possible but most of all, to stay alive. To explore the fantasy world of this adventure you must tell the computer what to do. the computer is your eyes and ears and will tell you where you are, what you can see, etc.
Commands available to you include TAKE an object, LOOK, GO NORTH, USE and object, INVENTORY which will tell you what you are carrying and SCORE to find out how many points you have gained. There are many more but part of the adventure is to discover them.
You could be surprised by what the computer can understand. There is no harm in trying. If you do get stuck, go back and explore a different section of the adventure. You may find something that could be useful.