Its been said that Kubb dates back to the Viking age and was played on Gotland as well as other locations in Sweden. Kubb means "wooden block" in the Swedish dialect of Gutnish. Kubb is a game which is usually played on grass, but can be played successfully on almost any other flat surface including dirt, sand and ice. [ED: all evidence indicates that Kubb as it is now played was invented in the 1980s based on a game originating in the 1900s]
Hnefatafl - popular Norse board game that pre-dates Chess. One side, the white pieces in this set, plays a thane defending a territory. The other side plays invaders. When Chess became more popular it was common to use one's Hnefatafl pieces as chessmen. The famous Lewis Chess Set is believe to be partly made up of repurposed Hnefatafl pieces.