The Five Doctors and the Twin Dilemma

A text adventure with just a two word parser. It seems to be based on the Doctor Who games, apparently without the BBC's consent!

You are about to take part in an adventure in the Death Zone on Gallifrey. As you were passing through this plastic model, you heard about the abundance of Grassy plains. Your mission is to try to destroy four Doctors before they reach Rassilon’s Tower. Being the MASTER, can you achieve your evil aim and win 13 more regenerations! You are likely to meet evil aliens, problems and even a large hairy Yeti! To be successful you must realize that everything in the adventure has a purpose, and should, in a small way, help you in trying to complete your mission.

Based on the final story in season 21 (1984) of Doctor Who.