It is the age of the Vikings and you are Olaf (in blue), pitting your wits against Wilfred (in red), alias your Spectrum, in this game of ancient strategy. The basic object of the game is to conquer the known world, which includes North and South America, Africa, Europe and most of Asia. Your castle and home is situated somewhere on the site of where Winnipeg will one day be built, and the awful Wilfred has his sited somewhere to the north of Lake Victoria in Africa. Continents are entered and left via ports marked as green spots and conquering is accomplished by placing appropriately coloured flags in columns and rows throughout the country.
Plagues of rats and fleas are a problem for Wilfred and he often has to return home to delouse. Both sides have an ammo allocation which is depleted whenever one of the enemy's flags is replaced by one of your own. This is also replenished by returning home. It is not possible to enter a continent totally conquered by Wilfred if his ammo level is above 40. Occasionally enemy shipping approaches your sailing ship and a small area at the bottom left of the screen clears to reform as a view of the sea, crenellated walls and a cannon.
The enemy ships appear on the horizon and must be fired at by moving the cannon left and right and pressing key Z.
Movement is via the cursor keys, each army taking turns. A message screen at the bottom informs you of Wilfred's seemingly endless misfortunes, a lot of which have to do with the widely spread Wangu tribe of head hunters.