Ok so the wiki games works by firstly giving you a word to look for on the wiki pages, and the aim of the game is to click on the quickest possible links that you think will lead you to the word you are looking for. If you have won on the left hand side it will show you all the other people that have won too and if you are one of the winners you can view their pathways that they took to find the word. Once you have finished the level you get given another word to find on wiki pages.
E.g. If the word was Japan you would click on the links which are highlighted blue, that you think will be the quickest way to find you goal. If you want to find the word quickly find words which relate to the word Japan for the easiest pathway.