The game is available to play at https://notendur.hi.is/~hde5/tgr/verkefni3/
(Tested on Google Chrome Version 59.0.3071.115 (Official Build) (64-bit))
node.js
npm
Change to the directory this project was cloned to and install connect and serve-static with NPM:
npm install connect serve-static
While in the directory this project was cloned to run server.js with node:
node server.js
Now on a browser go to http://localhost:8080 and play the game.